Here is another break down I found just giving speaker wire colors. 2015 CHEVROLET TAHOE CAR RADIO AUDIO STEREO WIRING DIAGRAM COLORS Here is the stereo radio wiring information for your 2015 Chevrolet Tahoe with the standard, premium, symphony, or Bose systems. It will be useful when installing an aftermarket radio, sound stereo system, or other automotive accessories. Make sure to grab the appropriate tools to test all the wires in your Tahoe. Please check it over and use it as a GUIDE to help you locate the appropriate wires. This schematic is provided free of charge and may not be 100% accurate. Failure to properly test all the wires may lead to vehicle or bodily damage. All information is provided as-is and accuracy is not guaranteed. If you find any conflicting info please leave a comment with what you found in your Chevy Tahoe. If you don’t see the wiring diagram you need comment and we will try to add it ASAP. Thanks for looking! 2015 Chevrolet Tahoe Car Audio Stereo Radio Wiring Diagram Schematic Colors Car Radio Constant 12v+ Wire: Red/Purple Car Stereo Ground Wire: Black Car Radio Ignition Switched Wire: N/A DATA Car Stereo Dimmer Wire: N/A Data Car Radio Illumination Wire: Car Stereo Power Antenna: Car Radio Amp Turn On Wire: Left Front Speaker Wire (+) Positive: Blue Left Front Speaker Wire (-) Negative: Brown/Blue Right Front Speaker Wire (+) Positive: Yellow Right Front Speaker Wire (-) Negative: Yellow/Black Left Rear Speaker Wire (+) Positive: Green Left Rear Speaker Wire (-) Negative: Green/Black Right Rear Speaker Wire (+) Positive: White Right Rear Speaker Wire (-) Negative: Blue/Black Center Channel Speaker Wire Positive / Negative: Subwoofer Speaker Wire Positive / Negative: Blue/Gray & Gray/Black Front Speaker Size: N/A Rear Speaker Size: N/A Amp Amplifier Location: Back of Vehicle Behind Rear Seats Radio Removal: See Service Manual Keep in mind if you are installing a new radio you may need the radio removal keys, the wiring harness, the antenna adapter, and the mounting kit as well. We always recommend using the appropriate interface adapters in case you want to reinstall your OEM radio later. See the links below to purchase these items.