Wire colors for this type of connector on seem to be fairly standardized to:Radio ground = black.+12V feed to radio = yellow.Dial light = gray.Front speaker += light green.Rear speaker (optional) += dark blue... (more items) Ray's Chevy Restoration Site -- Chevrolet Radio Information Is this answer helpful?Thanks!Give more feedbackThanks!How can it be improved?How can the answer be improved?Tell us how CHEVROLET Car Radio Stereo Audio Wiring Diagram Autoradio CHEVROLET Car radio wiring diagrams. car radio wire diagram stereo wiring diagram gm radio wiring diagram. Car stereo wiring diagrams car radio wiring car radio wiring colors car radio wire car radio connections wiring diagram car radio wire colours. CHEVROLET auto radio wiring diagrams install car radio. How to install car radio autoradio wiring harness stereo installation. 2011 Chevrolet Silverado Car Radio Wire Colors If you want to perform a 2011 Chevrolet Silverado radio install, a 2011 Chevrolet Silverado radio wire colors can save you a lot of time. The 2011 Chevrolet Silverado car audio wires are becoming harder to identify because OEM car audio is becoming more advanced.