Question: Where can I find a 1999 GMC Suburban radio wiring diagram? What are the 1999 GMC Suburban radio wiring harness colors?
If you’re looking to change the radio in your 1999 GMC Suburban or troubleshoot why your car radio stopped working, we’re here to help!
Our comprehensive 1999 GMC Suburban radio wiring diagram shows you all the radio wire harness colors, car speaker wiring colors and car speaker sizes. Use our 1999 GMC Suburban stereo wiring guide to help you with your car radio and installation needs.
In This Guide
1999 GMC Suburban Radio Wiring Diagram
This 1999 GMC Suburban radio wiring chart shows you all the 1999 GMC Suburban 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 |
Use a Car Radio Wiring Harness and Car Radio Dash Kit for an Easy Install! | |
Car Radio Illumination Wire | Gray |
Car Stereo Dimmer Wire | Brown |
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 | N/A |
Use an Amp Integration Harness to Connect Your Factory Amplifier to an aftermarket radio. |
1999 GMC Suburban Speaker Wiring Guide
This 1999 GMC Suburban speaker wiring chart shows you every speaker wire color and the speaker wire location. Use this 1999 GMC Suburban 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 |
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 |
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 |
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 |
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 |
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 |
1999 GMC Suburban Speaker Sizes and Location
This 1999 GMC Suburban speaker size chart shows your speaker measurements and speaker locations. Use this chart to see what speaker fits in your 1999 GMC Suburban.
Application | Speaker Size and Location |
---|---|
Front Center Speaker Size | N/A |
Front Center Speaker Depth | N/A |
Front Center Speaker Location | N/A |
Upgrade your Center Speakers for awesome sound! | |
Front Tweeter Size | N/A |
Front Tweeter Depth | N/A |
Front Tweeter Location | N/A |
Upgrade your Tweeters for cleaner audio highs! | |
Front Speaker Size | 6.5″ Speakers |
Front Speaker Depth | 3.5″ Depth |
Front Speaker Location | Front Doors |
Use a Speaker Wire Harness for easy Speaker Installation! | |
Rear Tweeter Size | N/A |
Rear Tweeter Depth | N/A |
Rear Tweeter Location | N/A |
Use a Speaker Wire Harness for easy Speaker Installation! | |
Rear Speaker Size | 6.5″ Speakers |
Rear Speaker Depth | 3.5″ Depth |
Rear Speaker Location | N/A |
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 1999 GMC Suburban 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
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4 thoughts on “1999 GMC Suburban Car Audio Wiring Guide”
I want to put in a newer model GMC GPS unit in to my 1999 Chevrolet Suburban. Anyone have any idea if I can do this or if I should just go with a new unit? Thanks
This wiring shows that an amp is not available. Other web searches mention an amp under the drivers seat, covered by the carpet, that overheats and shuts off. My suburban does have some sort of box in that location… Could that be it or is it something different? The seat has been removed by a previous owner – I found that they did not put all of the bolts back in…
Walt, have your dealer check for shorts by doing continuity tests on each wire coming out of the back of your radio. This will test to see if any wires are grounding out and causing your speakers to go in and out. Hope this helps. Good luck.
my 3/4 ton diesel suburban radio has an intermittent in the speakers output. The sound suddenly disappears
and some time later, it comes on again. The panel shows the radio on all the time.
Brought the car to the dealer who opened the driver door panel and moved all the wires. Found nothing.
but while reassembling the door panel. the sound returned. The mechanic stated that the radio has some
tripping device that cuts the speakers out if it detects a short.
Would appreciate any helpful comments. 73 Walt