1990 Chevrolet Silverado 3500

1990 Chevrolet Silverado 3500 Stereo Wiring Information

Radio Constant 12v+ Wire: Orange
Radio Switched 12v+ Wire: Yellow
Radio Ground Wire: Black
Radio Illumination 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 Dimmer Wire
Stereo Antenna Trigger
Stereo Amp Trigger Wire
Front Speakers Size
Rear Speakers Size

*If you know any of the above or any other missing information please use the comment box below to notify us.