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2002 GMC Sierra 1500 Radio Wire Harness Guide


Question: Where can I find a 2002 GMC Sierra 1500 radio wiring diagram? What are the 2002 GMC Sierra 1500 radio wiring harness colors?

If you’re looking to change the radio in your 2002 GMC Sierra 1500 or troubleshoot why your car radio stopped working, we’re here to help!

Our comprehensive 2002 GMC Sierra 1500 radio wiring diagram shows you all the radio wire harness colors, car speaker wiring colors and car speaker sizes. Use our 2002 GMC Sierra 1500 stereo wiring guide to help you with your car radio and installation needs.

2002 GMC Sierra 1500 Radio Wiring Diagram

This 2002 GMC Sierra 1500 radio wiring chart shows you all the 2002 GMC Sierra 1500 radio wire colors and their functions. Utilize this guide to help you with a car radio install or help with a car radio troubleshoot. If you don’t see the car radio wiring information you’re looking for, please feel free to ask your question at the bottom of this page.

Application Radio Wire Color
Car Radio Battery Wire (Constant Power 12v+) Orange
Car Radio Accessory Wire (Switched Power 12v+) Yellow
Car Radio Ground Wire Black/White
arrow Use a Car Radio Wiring Harness and Car Radio Dash Kit for an Easy Install!
Car Radio Illumination Wire Brown
Car Stereo Dimmer Wire Gray
Car Radio Antenna Trigger Wire N/A
Car Radio Amp Turn-On Trigger Wire N/A
Car Radio Amp Mute Wire N/A
Car Radio Amplifier Location Under the center console.
arrow Use an Amp Integration Harness to Connect Your Factory Amplifier to an aftermarket radio.

2002 GMC Sierra 1500 Speaker Wiring Guide

This 2002 GMC Sierra 1500 speaker wiring chart shows you every speaker wire color and the speaker wire location. Use this 2002 GMC Sierra 1500 speaker wiring guide to help you with a speaker replacement or speaker upgrade. If the car speaker wiring information you’re searching for is not listed, please don’t hesitate to ask for it at the bottom of this page.

Application Speaker Wire Color
Front Center Speaker Positive Wire (+) N/A
Front Center Speaker Negative Wire (-) N/A
arrow Upgrade your Center Speakers for awesome sound!
Front Left Tweeter Positive Wire (+) N/A
Front Left Tweeter Negative Wire (-) N/A
Front Right Tweeter Positive Wire (+) N/A
Front Right Tweeter Negative Wire (-) N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Front Left Speaker Positive Wire (+) Tan
Front Left Speaker Negative Wire (-) Gray
Front Right Speaker Positive Wire (+) Light Green
Front Right Speaker Negative Wire (-) Dark Green
arrow Use a Speaker Wire Harness for easy Speaker Installation!
Rear Left Tweeter Positive Wire (+) N/A
Rear Left Tweeter Negative Wire (-) N/A
Rear Right Tweeter Positive Wire (+) N/A
Rear Right Tweeter Negative Wire (-) N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Rear Left Speaker Positive Wire (+) Brown
Rear Left Speaker Negative Wire (-) Yellow
Rear Right Speaker Positive Wire (+) Dark Blue
Rear Right Speaker Negative Wire (-) Light Blue
arrow Upgrade your Subwoofer for deeper lows!
Left Subwoofer Positive Wire (+) N/A
Left Subwoofer Negative Wire (-) N/A
Right Subwoofer Positive Wire (+) N/A
Right Subwoofer Negative Wire (-) N/A

2002 GMC Sierra 1500 Speaker Sizes and Location

This 2002 GMC Sierra 1500 speaker size chart shows your speaker measurements and speaker locations. Use this chart to see what speaker fits in your 2002 GMC Sierra 1500.

Application Speaker Size and Location
Front Center Speaker Size N/A
Front Center Speaker Depth N/A
Front Center Speaker Location N/A
arrow Upgrade your Center Speakers for awesome sound!
Front Tweeter Size N/A
Front Tweeter Depth N/A
Front Tweeter Location N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Front Speaker Size 6.5″ Speakers
Front Speaker Depth 3.25″ Depth
Front Speaker Location Front Doors
arrow Use a Speaker Wire Harness for easy Speaker Installation!
Rear Tweeter Size N/A
Rear Tweeter Depth N/A
Rear Tweeter Location N/A
arrow Use a Speaker Wire Harness for easy Speaker Installation!
Rear Speaker Size 6.5″ Speakers
Rear Speaker Depth 3.3″ Depth
Rear Speaker Location N/A
arrow Upgrade your Subwoofer for deeper lows!
Car Subwoofer Speaker Size N/A
Car Subwoofer Speaker Depth N/A
Car Subwoofer Speaker Location N/A

Questions and Answers

If you have any questions about your 2002 GMC Sierra 1500 radio installation, please don’t hesitate to post them at the bottom of this page. We’re committed to finding the answers you need, and members of the Modified Life community may also provide valuable insights into the car stereo information you’re looking for. Don’t hesitate to ask your car audio question; it could benefit others seeking the same answers!

Contribute

Do you want to contribute 2002 GMC Sierra 1500 stereo wire diagram information to benefit the Modified Life community? Feel free to share your insights by posting at the bottom of this page. We will gather any additional information presented below by our community, verify it, and incorporate it into the car radio wiring guide above for easy reference. We are consistently adding new information to improve and update this car stereo wiring guide as it becomes available. We appreciate your contribution in advance!

9 thoughts on “2002 GMC Sierra 1500 Radio Wire Harness Guide”

  1. Blake, technically you could connect your 2002 GMC Sierra C1500 amplifier turn on wire to the radio switched 12v+ wire. That way your amplifier is on whenever your 2002 GMC Sierra C1500 is on and off whenever your 2002 GMC Sierra C1500 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 GMC Sierra C1500 amplifier install.

  2. I am installing a 10″ sub and amp and i have everything done except for the remote line. The manual says yellow is the remote turn on 12v and the rear left (-). I know that the yellow wire behind the radio (oem) is the rear left so where is the remote turn on?

  3. Louie, one idea may be that your amplifier may be too weak to power the two 12″ subwoofers and that may be the reason it keeps going into protection mode. Try wiring one 12″ subwoofer to the amplifier and turn your amp up to the same level as you did before. If the amplifier doesn’t go into protection mode than you may need a more powerful amplifier to power two 12″ subwoofers. Hope this helps. Good luck with your amp troubleshooting.

  4. im hooking up an amp for two twelves my amp keeps going into protection mode when i turn up the volume no pinched wires, good ground good 12 volt connectiuon at battery terminal with inline fuse im out of ideas i had to use an audio output converter but all wires are correct i think im out of ideas anybody??????????

  5. Shearl, its sounds like your radio may be in safe mode or anti-theft mode. You will need a unlock code to get your radio working again. Radio security codes are usually written in your car manual or given to you when you purchase the vehicle. If you do not have the radio security code, you would have to obtain it from the local GMC dealer. Hope this helps. Good luck with unlocking your radio.

  6. I just got an Ipod and was wondering if there is a way to wire it into the back of the radio and use the AUX button? i dont really care for those transmitters for ipods so im looking for a hardwire connection option.

  7. Troy, 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.

  8. hey-im trying to install an amp of my factory radio using a pioneer amp that has speaker wire inputs
    my question is-for the remote wire- should i splice it into the yelloy acessory wire?

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