2004 GMC Sierra C1500 Stereo Wiring Information
Radio Battery Constant 12v+ Wire: Orange
Radio Ground Wire: Black/White
Radio Illumination Wire: Brown
Stereo Dimmer Wire: Gray
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
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 following information is currently not available:
Stereo Antenna Trigger Wire
Stereo Amp Trigger Wire
Audio Front Speakers Size
Audio Rear Speakers Size
*If you know any of the above or any other missing information please use the comment box below to notify us.