2003 Chevrolet Silverado Car Stereo Installation Diagram

Whether your an expert Chevrolet Silverado mobile electronics installer, Chevrolet Silverado fanatic, or a novice Chevrolet Silverado enthusiast with a 2003 Chevrolet Silverado, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 2003 Chevrolet Silverado vehicles are becoming increasing more difficult to identify due to the installation of more advanced factory oem electronics.

One of the most time consuming tasks with installing an after market car stereo, car radio, satellite radio, xm radio, car speakers, tweeters, car subwoofer, crossovers, audio equalizer, car amplifier, mobile amp, car amplifier, mp3 player, ipod or any car audio electronics is identifying the correct color car audio wires for your 2003 Chevrolet Silverado.

The Modified Life staff has taken all its Chevrolet Silverado car radio wiring diagrams, Chevrolet Silverado car audio wiring diagrams, Chevrolet Silverado car stereo wiring diagrams, Chevrolet Silverado car radio wiring schematics, Chevrolet Silverado car wiring diagrams and cataloged them online for use by our visitors for free. Our automotive wiring diagrams allow you to enjoy your new mobile electronics rather than spend countless hours trying to figure out which wires goes to which 2003 Chevrolet Silverado part or component.

Feel free to use any Chevrolet Silverado car stereo wiring diagram that is listed on Modified Life but keep in mind that all information here is provided “as is” without any warranty of any kind and most of the car audio wiring diagrams listed on our enthusiast website are submitted by the Modified Life community. Use of the Chevrolet Silverado wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 2003 Chevrolet Silverado.

Questions

If you have any questions pertaining to the audio system in the 2003 Chevrolet Silverado, please feel free to post it at the bottom of this page and either we’ll do our best to find you the information you need or hopefully someone in the Modified Life community will have the information you’re looking for.

Request a Car Stereo Wiring Diagram

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Adding More Information

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2003 Chevrolet Silverado Car Stereo Installation Diagram

Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Class 2 Serial Data
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: Red/Blue
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: Pink
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

The 2003 Chevrolet Silverado radio wire color information above is updated as it is submitted by the Modified Life community.

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97 Comments

  • Reply Frank April 30, 2008 at 1:53 pm

    I need wiring diagram for the factory Bose audio system in my ’03 Chevrolet Silverado 1500HD. I am looking for the amp turn-on line to the factory Bose amp, so that I can tap my aftermartket amp turn-on line to the same one used to turn the Bose amplifier on when the factory radio is turned on.

  • Reply ModifiedLife April 30, 2008 at 5:08 pm

    Frank, use the pink wire on the factory radio wire harness for your amplifier turn on.

  • Reply josh August 29, 2008 at 3:08 pm

    i have a 2003 silverado 1500 and im tryin to get my aftermarket amp to turn on when the factory radio turns on. i dont have a pink wire so which wire do i splice the remote to?

  • Reply ModifiedLife September 4, 2008 at 1:12 am

    Josh, technically you could connect your amplifier turn on wire to the radio switched 12v+ wire. That way your amplifier is on whenever the car is on and off whenever your car is off. Just make sure to run an in-line fuse holder with a 1-amp fuse on the amplifier turn on wire. Hope this helps. Good Luck.

  • Reply Chance September 10, 2008 at 10:05 pm

    I have a 2003 suburban, the bose cd player quit working so I got a pioneer radio! I installed per instruction and now I have no power at my hot wire. I have it on the constant wire. Can you help?

  • Reply ModifiedLife September 13, 2008 at 12:49 am

    Chance, double check all your fuses. It sounds like you may have blown a fuse. Hope this helps. Good luck.

  • Reply Andrew October 24, 2008 at 10:56 am

    Hey I HAVE A 1993 Chevrolet Silverado 1500 and am trying to put a Pioneer Headunit in it. I have everything wired rihght i just cant find where to connect the harness to the truck. Please help me.

  • Reply ModifiedLife October 28, 2008 at 3:30 pm

    Andrew, ask and you shall receive: 1993 Chevrolet Silverado Car Stereo Wiring Diagram

  • Reply John January 10, 2009 at 1:04 am

    I just finished installing my new stereo in my 2003 Chevy Silverado and was about to install my amp for my sub but im not sure how run the power cable for the amp to the battery, which is the best way to run the wire? Is there another way to power the amp that im unaware of?

  • Reply ModifiedLife January 13, 2009 at 5:33 pm

    John, most installers will run the power cable from the battery, through the firewall, under the carpet (near the door sill) and to your amplifier location for hook up. Just make sure you zip tie the cable down so it doesn’t move. Also, make sure when you run the cable through the firewall that you use a rubber grommet to protect the power cable from rubbing on any bare metal. Hope this helps. Good luck.

  • Reply Ryan February 1, 2009 at 3:39 am

    I have a 96 Blazer and I want to know why my I cant keep programmed radio stations, where should I connect the yellow 12v+ constant?

  • Reply ModifiedLife February 3, 2009 at 6:16 pm

    Ryan, refer to this diagram: 1996 Chevrolet Blazer Car Stereo Wiring Diagram

  • Reply Brian February 22, 2009 at 3:01 pm

    Im installing an aftermarket stereo in my 2003 Chevy Silverado. Im using your wiring diagram. I have 2 orange wires, 1 is thicker than the other. I need to know witch wire is witch. One has to be 12v+ constant and one is ignition. Please Help! I think your website is great!

  • Reply ModifiedLife March 3, 2009 at 1:19 am

    Brian, use the thicker orange wire for your radio switched wire. Hope this helps. Good luck.

  • Reply nick March 6, 2009 at 6:32 pm

    just installed an aftermarket pioneer radio into a 03 grand am gt. Did not use a wireharness just splicing. All the speaker wires and power wires are where they need to go to, but I am still not getting any sound. I heard that the pink amp trigger wire needs to be hooked up, but no one knows where to. There are no blown fuses in the car. Just completly stumped. Does anyone know how to fix the problem or knows what I might be doing wrong other then getting it professionally done.

  • Reply kelvin April 14, 2009 at 2:04 pm

    i need to bypass my factory amplifier what harness is needed and where is the amplifier located

  • Reply shannon May 18, 2009 at 12:01 pm

    i am installing an aftermarket sony in my 2003 silverado and have speakers and ground hooked up. when i hook the power up it stays on constantly even with the ignition off. how do i fix this?

  • Reply ModifiedLife May 30, 2009 at 12:30 am

    Shannon, it sounds like you may have hooked up your switched accessory wire off your radio to the battery constant wire on your car. The battery constant always sends power to the radio to save your radio stations and other audio settings. The accessory switched wire sends power to your radio only when the key is in the ignition and your car is on. Check your wiring and make sure the correct radio wires are hooked up to the correct wires on your factory harness. Hope this helps. Good luck.

  • Reply Dave DeWees May 31, 2009 at 9:28 pm

    I have a 1999 Chevy Silverado. I would like to install an XM unit. Did Chevrolet offer an XM ready radio for this vehicle? If not, do you have a radio wiring diagram for this year truck, so that I can install an aftermarket unit using the original harnesses? Thank you.

  • Reply ModifiedLife June 1, 2009 at 4:24 pm

    Dave, ask and you shall receive: 1999 Chevrolet Silverado Car Radio Wiring Guide

  • Reply Ray June 22, 2009 at 1:24 pm

    What is the best way to hook up the switched power wire on a 2003 Silverado. It says there is no switched power wire on the harness, to run one to the fuse box for switched power. Is this true? If so, what fuse location is best?

  • Reply ModifiedLife June 25, 2009 at 11:39 pm

    Ray, run a wire from the back of your radio to your ignition switch harness located in the steering column and tap the orange wire for switch power. Hope this helps. Good luck with your radio install.

  • Reply DONTAE November 4, 2009 at 2:40 pm

    do you have a radio wiring digram for a 1991 chevy astro van

  • Reply ModifiedLife November 16, 2009 at 1:46 am

    Dontae, ask and you shall receive: 1991 Chevrolet Astro Car Stereo Installation Instructions

  • Reply James November 23, 2009 at 7:02 am

    Hey I have a quick question after installing a cd player in a 93 Chevy Silverado is it possible to use the stock amp and radio unit so it would still have the functional clock and everything?

  • Reply Ethan December 13, 2009 at 8:44 am

    Hey i have a 2003 silverado 1500 and i want to put a sub in. Does the stock radio have the sub pickups or do i need to put an aftermarket radio in?

  • Reply ModifiedLife December 29, 2009 at 2:48 am

    Ethan, yes it is possible to add a subwoofer and an amplifier to the factory radio. It does take some wiring knowledge and installation know-how. You would require an aftermarket amplifier, amplifier wiring, subwoofer and a speaker to rca line out converter. Here is the Line-Out Converter you need:

    Scosche 2-Channel Speaker to RCA Line Out Converter

    When splicing in the RCA Line Out Converter, tap your factory rear speaker wires to get a full range audio source. We suggest you invest in some solid wire taps that wont come loose. These wire tap connectors will allow you to tap into wires without cutting and installs in seconds by hand with no crimping or tools required. If you’ve never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck with your subwoofer and amp installation.

  • Reply Brian January 21, 2010 at 2:37 pm

    I have a 2001 Silverado. I would like to hook up an MP3 player into the AUX input the detached cassette head is currently in. Can this be done?

  • Reply ModifiedLife January 29, 2010 at 3:26 am

    Brian, yes it is possible to connect an Apple iPod to your factory radio. Here is the iPod adapter you need:

    Apple iPod Adapter for 2003 Chevrolet Silverado

    If you’ve never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck with your Apple iPod Adapter installation.

  • Reply Chet February 4, 2010 at 8:08 pm

    Love your site. I am about to buy the Scosche 2-Channel Speaker to RCA Line Out Converter This basically makes it so i can have my amp hooked up to my factory stereo (my vehicle is a 2003 Chevy Silverado with Bose and Onstar) and what wires will i have to mess with. I have knowledge with car audio electronics and wiring but i want to make sure i do it correctly.

  • Reply ModifiedLife February 9, 2010 at 8:33 pm

    Chet, when splicing in the RCA Line Out Converter, use the either the right rear speaker wires or the left rear speaker wires to get a full range audio source. Hope this helps. Good luck with your 2003 Chevrolet Silverado amp installation.

  • Reply Chris February 20, 2010 at 1:53 am

    Trying to install new Pioneer head unit into 03 Avalanche. Was offered advice by someone that I need a “interface module” in addition to the wiring harness I already bought. This is for the door chimes and other not sure what else. Do i really need this? Thanks.

  • Reply Trevor March 18, 2010 at 3:27 pm

    I have a 2003 Silverado 1500. Just put in a new pioneer head unit and sound was working.
    I put in two new front kappa door speakers and they work fine, but sometimes when
    I am driving the speakers cut out and the unit stays on. I have to turn the car off then turn it on
    before the speakers kick back on. And all four speakers turn off not just the front ones. There is not after-market subs or amps hooked up. I checked the wiring for the speakers and nothing is touching or anything. Im so confused about what to do.

  • Reply Paul March 31, 2010 at 5:13 am

    I have an ’04 Avalanche that has a Bose system, but recently the Factory radio went out. Now I have a NON-Bose factory radio and can’t seem to get any sound from the speakers. So my question is what wire do I need to tap to get the Bose system to turn on?

  • Reply Tim April 10, 2010 at 11:03 am

    Trevor… i had this same problem… double check that the harness is fully clipped into the back of the deck if it isn’t there is your problem make sure the clip snaps into place. Good luck

  • Reply aaron April 29, 2010 at 2:14 pm

    what is the best way to connect a RCA line out converter to get the best base for a 2003 silverado with a stock factory stereo and factory bose audio system

  • Reply ModifiedLife May 11, 2010 at 8:18 pm

    Aaron, when splicing in the RCA Line Out Converter, tap your factory rear speaker wires to get a full range audio source. We suggest you invest in some solid wire taps that wont come loose. These wire tap connectors will allow you to tap into wires without cutting and installs in seconds by hand with no crimping or tools required. If you have never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck.

  • Reply Mitch May 13, 2010 at 11:46 pm

    I have a 2002 Chevy Silverado 1500 and was wanting to put a new amp in along with new door speakers and maybe later a sub. I still want to keep the stock head unit, but how would i wire the new amp to the factory head unit, and would i need bigger gauge wires? The wiring guide would be greatly appreciated, along with some helpful advice…if it’s not too much trouble. Thanks a ton you guys

  • Reply ModifiedLife May 25, 2010 at 12:37 am

    Mitch, it does take a good amount of stereo installation knowledge to install an aftermarket amp to your factory 2004 Chevrolet Silverado. What we can tell you is what you will need. Most late model vehicles do not have rca outputs on the factory radio to feed an audio signal to your aftermarket amplifier. You would have to install a line out converter to supply an audio output. Here is the Line-Out Converter you need:

    Scosche 2-Channel Speaker to RCA Line Out Converter.

    When splicing in the RCA Line Out Converter, tap your factory rear speaker wires to get a full range audio source. We suggest you invest in some solid wire taps that wont come loose. These wire tap connectors will allow you to tap into wires without cutting and installs in seconds by hand with no crimping or tools required. In terms of larger speaker wire, you will need to upgrade the speaker wiring thickness depending on the power output of your aftermarket amp and how far away the speaker are from the amplifier. The farther away the speakers are from the amplifier, the thicker gauge wire you will need. If you’ve never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck.

  • Reply Timothy June 12, 2010 at 6:25 pm

    I am in the process of putting an aftermarket stereo in my truck (2003 Chevy Silverado)… I have spliced all the wires and have connected all available wires (speakers, 12 v Power *large orange wire and the ground) However I have no idea what the smaller orange wire does. What does it do and where should in be connected… My truck does not have a red or blue wire for Illumination? Kinda lost, and I need help ASAP

    Timothy Baker

  • Reply 2001tahoe June 17, 2010 at 10:19 pm

    I have a 2000 tahoe I hooked up my pyle 8in indash monitor all the bells and whistles work just fine but no sound comes out of the speakers it was one time when they did play for about 5 mins and then they cut off how do i get constant sound out of my speakers from the indash I was told to splice the remote with a blue and white wire on the factory harness but after reading your diagram would i come out better splicing with the pink wire instead im confused any advice is appreciated at this point

  • Reply ModifiedLife June 21, 2010 at 7:05 pm

    2001Tahoe, technically you could connect your 2000 Chevrolet Tahoe amplifier turn on wire to the radio switched 12v+ wire. That way your amplifier is on whenever your 2000 Chevrolet Tahoe is on and off whenever your 2000 Chevrolet Tahoe is off. Just make sure to run an in-line fuse holder with a 1-amp fuse on the amplifier turn on wire. Hope this helps. Good luck with your install.

  • Reply Kyle July 6, 2010 at 8:23 pm

    Hey, i have a 2003 Chevrolet silverado with the bose system. I was thinking about getting an indash unit but the guy at the audio store in my town said it would be close to $100 just for the adapter? Can anyone give me a price range? THanks

  • Reply Chas July 11, 2010 at 3:36 pm

    I have a 2000 Silverado with factory radio with single CD and remote cassette. Can a later model GM in-dash radio with 6 CD changer be retrofitted to this model?

  • Reply Zach July 11, 2010 at 9:57 pm

    need to know which wire turns my amp on and off 97 chevy 1500 thanks!

  • Reply ModifiedLife July 14, 2010 at 8:09 pm

    Zach, ask and you shall receive: 1997 Chevrolet Silverado C1500 Car Radio Wiring Chart

  • Reply Michael July 21, 2010 at 1:49 am

    I have an 03 3/4 ton silverado with bose. i’m running a kenwood aftermarket head unit. Everything works great other than i’m needing some help with getting the dimmer on my head unit to work. it has an orange w/ white stripe wire for this purpose, where do i hook it up to on the truck side???

  • Reply warren July 30, 2010 at 11:51 am

    hi,, i have an 03 silverado with bose factory system,there was an after market amp and subs installed, currently there is power to the amp and subs but none of the factory speakers are on,,,ive checked some fuses and some wiring, back of the deck there is an orange wire not connected in the harness clip, i dont know if its needed? is there a factory amp or something messing stuff up as well? which wires in the harness are for the factory speakers? please help

  • Reply ModifiedLife August 2, 2010 at 4:22 pm

    Warren, your 2003 Chevrolet Silverado has a factory amplifier that needs to be turned on by your after market radio. The car stereo amplifier trigger wire has to be wired up to turn on your factory amplifier. Make sure your amplifier turn on wire is wired correctly. Hope this points you in the right direction. Good luck with your 2003 Chevrolet Silverado stereo installation.

  • Reply Jeremy August 2, 2010 at 5:57 pm

    I am trying to hook up an aftermarket pioneer into a 2002 silverado c1500. I cant seem to locate a proper diagram. Any help would be great

  • Reply ModifiedLife August 5, 2010 at 3:36 pm

    Jeremy, ask and you shall receive: 2002 Chevrolet Silverado C1500 Car Stereo Wire Diagram

  • Reply anthony August 6, 2010 at 9:57 am

    I have a 2004 Chevrolet Silverado and installed a Pioneer dvd/cd touch screen deck, 2 rockford fosgate amps, capacitor and 12″ woofers in a custom long box which fit under the back seat. Most the other equipment was bolted to the rear panel behind the back seat, everything was professionally installed. Everything was also recently stolen and the insurance did not cover most of the stuff, even though I had the original receipt because it was not mounted in a factory location. Where can I find out where a factory location would be for my truck I cannot find this info anywhere. Thanks for your help.

  • Reply Audie August 15, 2010 at 10:40 pm

    Im installing an after market amp to a stock stereo system in my truck. I pretty much got everything wired up but, I dont know where to put the remote start cable from the amp to the truck, Iis there a wire in the back of the stereo that I can strip so that I can connect it??

  • Reply ModifiedLife August 20, 2010 at 1:35 am

    Audie, run a wire to your steering column and use the orange wire in the ignition switch wire. This wire will provide you with a switched power source. Just make sure to run an in-line 1-amp fuse on the amplifier remote turn on wire. Hope this helps. Good luck with your 2003 Chevrolet Silverado amplifier install.

  • Reply Chris September 19, 2010 at 9:13 pm

    Please help, I installed a new aftermarket Stereo in my 2005 Chevy Silverado 1500 HD during the install I blew a fuse I replace the fuse and I am still not getting power.

  • Reply ModifiedLife September 22, 2010 at 6:27 pm

    Chris, double check ALL your fuses using a Automotive Fuse Tester because certain vehicles may have a wire tied into another circuit not labeled as car radio. You may have additional fuse boxes by the driver side of the dash, passenger side of the dash, driver kick panel, passenger kick panel, under the steering column or under the hood. Hope this helps. Good luck with troubleshooting your 2005 Chevy Silverado 1500 radio.

  • Reply Michael Riley October 3, 2010 at 12:09 pm

    Is it possible to add bluetooth capablities to my 2003 Chevrolet Silverado? My current cell phone has bluetooth technology and I would like to integrate that into my pick up. This would allow me to me to make phone calls with voice commands and be hands free while driving. Any help would be greatly appreciated.

  • Reply ModifiedLife October 12, 2010 at 2:51 pm

    Michael, yes it is possible to add a car bluetooth device to your 2003 Chevrolet Silverado. Here is the adapter you will need:

    Hands Free Bluetooth Adapter for 2003 Chevrolet Silverado

    If you’ve never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck with your 2003 Chevrolet Silverado bluetooth adapter installation.

  • Reply Alan Brown November 2, 2010 at 7:22 pm

    We have a 2003 chevy silverado. A cd was put in it and it skips and I went to take it out and it wont come out, now the whole radio wont turn off. Its possessed now. I cant find a fuse to disconnect it so the battery wont die. ANy ideas???? Thanks!

  • Reply David November 11, 2010 at 12:54 pm

    I am working on an 01 Chevy Silverado and just replaced an aftermarket radio with another aftermarket, but during the transition I lost power to the ignition wire going into the radio. Now, I do not have power at all to the radio and after checking all of the fuses I can’t find a solution. Please help!!!

  • Reply dale November 14, 2010 at 6:04 pm

    I recently bought a used 2003 Silverado. The factory radio is behind the seat with a harness of somekind hooked up to it, no speakers just the radio head. He put an after market radio and amp in it (that dosent work). He says that the fatory radio has to be hooked up or the truck wont run, and the air bags wont work. Has anyone heard of this, and how do i get rid of the radio behind the seat?

  • Reply ModifiedLife November 16, 2010 at 5:33 pm

    David, double check ALL your fuses using a Automotive Fuse Tester because certain vehicles may have a wire tied into another circuit not labeled as car radio. You may have additional fuse boxes by the driver side of the dash, passenger side of the dash, driver kick panel, passenger kick panel, under the steering column or under the hood. Hope this helps. Good luck with troubleshooting your 2001 Chevy Silverado radio.

  • Reply chrissy November 28, 2010 at 6:19 pm

    can anyone tell me if it is possible to add a sub-woofer (powered or not) to a 2010 chevy silverado (without factory Bose system)? thanks!

  • Reply ModifiedLife December 7, 2010 at 2:30 am

    Chrissy, yes you can. Most late model vehicles do not have RCA outputs on the factory radio to feed an audio signal to your aftermarket amplifier so you would have to install a line out converter to supply an audio output. Here is the Line-Out Converter you need:

    Scosche 2-Channel Speaker to RCA Line Out Converter

    When splicing in the RCA Line Out Converter, tap your factory rear speaker wires to get a full range audio source. We suggest you invest in some solid wire taps that wont come loose. These wire tap connectors will allow you to tap into wires without cutting and installs in seconds by hand with no crimping or tools required. If you’ve never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck with your 2010 Chevrolet Silverado subwoofer installation.

  • Reply austin ludwig December 9, 2010 at 11:46 am

    i have a 2002 chevy silverado ext cab and im putting an aftermarket sub in it and was wondering where i would run the remote turn on wire? would it go to the pink wire or the thicker orange wire?

  • Reply julio December 15, 2010 at 1:52 pm

    just installed a pioneer stereo on 2003 suburban using kits all seems to be working in proper order. only concern is when i took factory radio it had two plug in harness to stereo. kit only came with one . like i said its plays sounds great. just wondering if havin plug loose will cause malfuction if i dont have that other plug hooked up?

  • Reply ModifiedLife December 15, 2010 at 10:51 pm

    Austin, technically you could connect your 2002 Chevrolet Silverado amplifier turn on wire to the radio switched 12v+ wire. That way your amplifier is on whenever your 2002 Chevrolet Silverado is on and off whenever your 2002 Chevrolet Silverado is off. Just make sure to run an in-line fuse holder with a 1-amp fuse on the amplifier turn on wire. Hope this helps. Good luck with your 2002 Chevrolet Silverado subwoofer install.

  • Reply kyle reed December 16, 2010 at 1:18 am

    Do i need to raise the back seat in my 2003 1500 chevy silverado regular cab, to fit two 12” speakers under the seat? and where is the best place to fit the 1000 watt amp?

  • Reply Valerie January 7, 2011 at 9:21 am

    I have a 2003 Chevy Avalanche. The front driver’s side speaker does not work unless it is warm outside. And, my factory installed stereo has started powering off on its own for no reason when I’m playing a cd. It comes back on a second later with the time reset to 12:00. Do you think there is a short in the wiring somewhere? And if so, where should I look? Or could the stereo system be overheating from using my truck’s heat in the colder weather? Thanks.

  • Reply robin glass January 10, 2011 at 8:14 pm

    I have a 2003 Chevy Silverado and dont know how to adjust time on the radio. There is no set button and no small buttons under clock to set time. Please help

  • Reply Roy F Gaskey March 3, 2011 at 5:11 pm

    2003 silverado, radio shows that it is on, no sound, any suggestions, I have tried replacing the fuse in the driver side of dash and the one under the hood. At one time the sound would come back and then go away, it could be a loose connection. The pickup only has 60,000 miles and I am the only owner, never been crashed.

  • Reply ModifiedLife March 7, 2011 at 8:14 pm

    Roy, double check ALL your fuses using a Automotive Fuse Tester because certain vehicles may have a wire tied into another circuit not labeled as car radio. You may have additional fuse boxes by the driver side of the dash, passenger side of the dash, driver kick panel, passenger kick panel, under the steering column or under the hood. If all of your fuses are good, you may have a short or loose connection on your amplifier turn on wire. Hope this helps. Good luck with your 2003 Chevrolet Silverado radio troubleshooting.

  • Reply john March 27, 2011 at 2:26 pm

    hey i have a 2003 chevrolet silverado 1500 v6 and i just hooked up my pioneer radio and the thing stays on after the truck is off and key is pulled out… had to splice into the orange to get power how do i get the thing to remotely turn off when i turn the truck off….. i have to take the face off just to get it to turn off ….. the blue and white wire i thought was remote to turn off and is hooked up with the blue white cord on harness … what do i do ????

  • Reply ModifiedLife March 30, 2011 at 7:27 pm

    John, it sounds like the way you wired up your Pioneer radio is incorrect. Double check your wiring and make sure you have the correct wires spliced to the right colors. The remote turn on wire is not used to turn the radio on and off, it is used to turn an amplifier on and off. The switched accessory wire is used to turn the radio on and off. Hope this helps. If you’ve never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Good luck with your 2003 Chevrolet Silverado stereo installation.

  • Reply Dave April 18, 2011 at 8:33 pm

    I purchased a isimple soundbyte kit for 2004 chevy 2500 hd. It requires you to connect it using the cd changer wiring port at the back of the radio. Can I utilize the port where my xm module is connected instead. Do you have a wiring diagram for the cd and xm connectors?

  • Reply ModifiedLife April 20, 2011 at 10:15 pm

    Dave, as much as we would like to help you, most of the car stereo wiring information listed on our website is provided by our visitors. We currently do not have any information on the 2004 Chevrolet Silverado 2500 cd or xm connector wiring but hopefully someone from our Modified Life community would be able to chime in and help you out.

  • Reply wes May 12, 2011 at 11:55 am

    I added a external amp to my 2005 trailblazer and now the chimes are amplified too. Is there any way to stop this?

  • Reply Scott May 15, 2011 at 1:47 am

    Me and a friend installed an aftermarket Pioneer head unit in a 2003 Chevy Silverado W/T model, which had factory AM/FM radio only. We cant seem to get it to turn off when the key is turned off, you have to manually turn off the head unit. There are 2 orange wires in the Chevy, which we presumed are both hot, but only powers the unit on, the thickest orange wire, but the head unit wont turn off unless you do it manually. Any suggestions? Thanks!

  • Reply ModifiedLife May 26, 2011 at 12:21 am

    Scott, run a primary wire from the back of your radio to your steering column and use the brown wire in the ignition switch harness. This brown wire will provide a switched power source for your 2003 Chevrolet Silverado stereo. Hope this helps. Good luck with your 2003 Chevrolet Silverado stereo installation.

  • Reply Adam June 3, 2011 at 12:15 pm

    I have a 2003 GMC Sierra with BOSE and On Star. I put an aftermarket head unit, Amp and a sub in it that i swapped out of my 2005 Silverado. It worked just fine in my silverado but now that i put it in my 03, i have power to my amp, and ive taken my buddies brand new amp and head unit and RCA cables and used them to see if something was wrong with mine but the didnt work either but they work in his. I bought the “GM 2000” wiring kit at wal-mart, that came with the chime box and installed it. Why am i not getting any noise out of my sub? anyone?

  • Reply Acklan June 15, 2011 at 12:21 pm

    I have a 2006 Silverado Crewcab that I want to install a GM OEM 6 disc changer. Questions… 1) Where can I buy the wiring harness that plugs into my radio? 2) Where was the OEM changer located on my year\model truck?

  • Reply Ronnie Altman June 20, 2011 at 12:57 pm

    i have a 2004 chevrolet silverado with bose radio i bought used. The am/fm radio work fine. i had xm signal transferred to radio, recieving channels and display but no sound on xm. anyone got an ideas?

  • Reply Troy July 3, 2011 at 11:58 pm

    I have a 2003 chevy silverado with bose and onstar. I want to use the oem radio and I purchased the adapter to plug in my left and right audio from the amp but i am confused on which wires i need to hook up the wires to. The instructions say I need right and left output. What wires are those? Thanks.

  • Reply ModifiedLife July 7, 2011 at 8:43 pm

    Ronnie, when splicing in your RCA Line Out Converter, tap your factory rear speaker wires to get a full range audio source. We suggest you invest in some solid wire taps that wont come loose. These wire tap connectors will allow you to tap into wires without cutting and installs in seconds by hand with no crimping or tools required. If you install a line out converter, your rear speakers will still work properly. If you’ve never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck with your 204 Chevrolet Silverado amplifier installation.

  • Reply Jeremy August 16, 2011 at 2:37 pm

    I have a 2003 Chevy Silverado and the radio sound would fade in and out (all display functions still worked) and recently it quit working all together as with the chime for door ajar. I purchased a new aftermarket radio and the wiring kit with the new chime and installed it. All functions of my aftermarket radio work and the display on it works but still no sound out of the speakers. Any suggestions? Thank You.

  • Reply ModifiedLife August 19, 2011 at 6:06 pm

    Jeremy, double check ALL your automotive fuses using a Automotive Fuse Tester because certain vehicles may have a wire tied into another circuit not labeled as car radio. You may have additional fuse boxes by the passenger kick panel, driver side of the dash, driver kick panel, passenger side of the dash, under the steering column or under the hood. If all of your automotive fuses are not blown, your 2003 Chevrolet Silverado factory amplifier (if equipped) may be faulty. We suggest you take your car to an experienced mobile audio installer and have them troubleshoot your problem. Hope this helps. Good luck with your 2003 Chevrolet Silverado stereo troubleshooting.

  • Reply Brian August 28, 2011 at 11:09 pm

    I have a 2003 Chevrolet Silverado. I bought the recommended wiring harness and it came with a chime box and everything. When I took out the factory radio all that’s back there is the 24-pin plug. Why do I even have a chime box and all of these other plugs in the harness kit? anyone?

  • Reply flippy September 15, 2011 at 8:33 am

    my 2003 chev ss truck has a factory bose 6 disc stereo . radio stopped working. it lights up and seems to pick up radio chanel but no sound and i lost all my warning chimes. is this common and is there a reset or is my internal amp gone

  • Reply ModifiedLife September 19, 2011 at 5:48 pm

    Flippy, double check ALL your fuses using a Automotive Fuse Tester because certain vehicles may have a wire tied into another circuit not labeled as car radio. You may have additional fuse boxes by the driver side of the dash, passenger side of the dash, driver kick panel, passenger kick panel, under the steering column or under the hood. If all of your fuses are good, your 2003 Chevrolet SS Truck factory amplifier (if equipped) may be faulty. We suggest you take your car to an experienced audio installer and have them troubleshoot your problem. Hope this helps. Good luck with your 2003 Chevrolet SS Truck radio troubleshooting.

  • Reply Dustin October 12, 2011 at 11:39 pm

    I was wondering about the red light flashing on my 2003 chevy silverado factory stereo. Will it hurt anything when i unhook my factory stereo to put an aftermarket one in?? I heard it was a security light and it could lock something up. is that true?

  • Reply Anthony November 24, 2011 at 7:19 pm

    I have a problem with my factory radio in my 2003 chervolet Silverado, when the ignition is off the radio is still pulling approx. 2 amps. Please could someone point me in the right direction to solve this problem?? Tried switching factory radios still had the same problem. anyone?

  • Reply BRAD January 13, 2012 at 6:15 pm

    I installed a aftermarket cd player in my 2004 gmc sierra using the wiring harness with chimes. It turns on, but sometimes shuts off after truck ignition. Any ideas?? thanks

  • Reply ModifiedLife January 19, 2012 at 6:30 pm

    Brad, first double check ALL your fuses and make sure ALL your fuses are good. You can do this by using an Automotive Fuse Tester and making sure all of your fuses are not blown. If all of your fuses are good, check your after market radio connections behind your head unit. If all your wire connections are good, take a look at your battery terminals wires. Sometimes when your 2004 GMC Sierra battery wire terminals are not in full contact with battery posts because of corrosion, your radio could cut in and out. Try removing your battery wire terminals from the battery, clean them with a battery terminal cleaner and re-install. Hope this helps. Good luck with your 2004 GMC Sierra radio troubleshooting.

  • Reply Steven January 22, 2012 at 12:06 am

    I have a 2003 silverado 2500 hd is this used as the same diagram? Also I wired it using this diagram and I have 3 wires not used its a brake wire reverse wire and illuminate wire. What do I use those wires for? Or where would I hook them up too?

  • Reply ModifiedLife February 2, 2012 at 9:24 pm

    Steven, yes this is the correct stereo wiring. The 2003 Chevrolet Silverado 2500 brake wire is located at the emergency brake. The 2003 Chevrolet Silverado 2500 reverse wire is the light green wire and is pin F in the black plug at the BCM module. Hope this helps. Good luck with your 2003 Chevrolet Silverado 2500 stereo installation.

  • Reply Billy February 15, 2012 at 12:25 am

    I have a 2003 chevy silverado ss with a bose system and it lost all sound I just bought a new touch screen sound storm radio and I am wondering if I should buy the harness kit and run it through the amp and see if it works or bypass the amp and I was also trying to find out about a steering wheel controls adapter for the bose to a sound storm can you help? anyone know?

  • Reply ModifiedLife February 22, 2012 at 10:36 pm

    Billy, we suggest you to bypass your 2003 Chevrolet Silverado factory amp to ensure an easier install. Here is the bypass harness you need:

    Factory Amplifier Bypass Harness for 2003 Chevrolet Silverado

    If you’ve never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck with your 2003 Chevrolet Silverado amplifier bypass installation.

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