2001 GMC Yukon Car Radio Wiring Schematic

Whether your an expert GMC Yukon mobile electronics installer, GMC Yukon fanatic, or a novice GMC Yukon enthusiast with a 2001 GMC Yukon, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 2001 GMC Yukon 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 2001 GMC Yukon.

The Modified Life staff has taken all its GMC Yukon car radio wiring diagrams, GMC Yukon car audio wiring diagrams, GMC Yukon car stereo wiring diagrams, GMC Yukon car radio wiring schematics, GMC Yukon 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 2001 GMC Yukon part or component.

Feel free to use any GMC Yukon 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 GMC Yukon wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 2001 GMC Yukon.


If you have any questions pertaining to the audio system in the 2001 GMC Yukon, 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

If you can’t find a particular car audio wire diagram on Modified Life, please feel free to post a car radio wiring diagram request at the bottom of this page and we’ll do our best to find you the diagram or schematic you need for your mobile audio installation.

Adding More Information

If you would like to help the Modified Life community by adding any missing information or adding a new car audio wire diagram to our resource, please feel free to post it at the bottom of this page.

2001 GMC Yukon Car Radio Wiring Schematic

Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
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

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  • Reply Tyree July 14, 2008 at 11:37 pm

    What color is the turn-on switch? Trying to hook up my Amplifier and need to know which wire is the auto turn-on switch so when the car starts up my amp automatically turns on with the radio!

  • Reply ModifiedLife July 15, 2008 at 11:34 am

    Tyree, technically you could connect your amplifier turn on wire to the radio switched 12v+ wire (yellow). 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 Tyrell August 21, 2008 at 12:45 pm

    I am having the same problem as Tyree but I’m just hooking my aftermarket radio up, the issue is the Car Radio Accessory Switched 12v+ is not yellow, infact there is no yellow wire. What other color could it be?

  • Reply francisco January 4, 2009 at 9:22 pm

    i bought the harness and i conected everything it turned on but the speakers dont go on

  • Reply ModifiedLife January 11, 2009 at 3:08 pm

    Francisco, your vehicle may have 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. Unfortunately, we do not have this information but maybe someone from the Modified Life community can post that information here. Hope this helps. Good luck.

  • Reply Scott November 10, 2009 at 8:00 pm

    Very good site. Does any one know however where the factory amp is located in a 2001 GMC Yukon XL?

  • Reply Mike December 3, 2009 at 11:11 am

    Factory amp is behind glove compartment

  • Reply ModifiedLife December 3, 2009 at 5:45 pm

    Mike, thanks for the 2001 GMC Yukon XL factory amplifier location contribution!

  • Reply nick December 27, 2009 at 12:45 am

    I am having the same problem as Francisco, I am hooking up an aftermarket receiver and everything on the unit is working but I have no sound. I am guessing the car has a factory amp that needs to be connected but I don’t know how. If anyone knows how to get the amp connected I would be very appreciative.

  • Reply Carlos June 27, 2010 at 8:19 pm

    i have a Denali 2001, i don´t know why me left speakers stop playing any sound can you help me with that?

  • Reply ModifiedLife July 7, 2010 at 5:50 pm

    Carlos, first double check ALL your fuses and make sure ALL your fuses are good. You can do this by pulling each fuse and making sure it is not blown. If all of your fuses are good, your factory amplifier is 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 2001 GMC Denali audio output troubleshooting.

  • Reply mario September 19, 2010 at 1:17 am

    i have a 2002 GMC Yukon XL and im trying to hook up an aftermarket radio and i cant turn on my factory amp. does anyone know how or what wires to hook up so that the amp comes on and speakers play?

  • Reply Demetrio February 22, 2011 at 6:31 pm

    Is there a port where I can simply plug in my mp3 cable?

  • Reply ModifiedLife February 28, 2011 at 2:50 pm

    Demetrio, you will need an automotive auxiliary input adapter. This adapter will allow you to input any mp3 player or portable music player into your factory radio. This is the easiest and most cost effective way to add an audio input into your factory stereo. Here is the adapter you will need:

    Aux Input Adapter for 2001 GMC Yukon

    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 2001 GMC Yukon aux input adapter installation.

  • Reply Shawn Sharpe May 23, 2011 at 12:48 pm

    I have a 2001 GMC Yukon and my rear door speakers are not playing…..I tapped in to the front wired that are playing from the back wires and still no sound to the rear….what else can i do besides running new speaker wires from the actual radio?

  • Reply ModifiedLife April 23, 2012 at 4:46 pm

    Shawn, run a primary wire to your steering column and use the orange wire in the ignition switch harness. This orange wire will provide you with a switched power source. Hope this helps. Good luck with your 2001 GMC Yukon stereo install.

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