2002 Chevrolet Trailblazer Stereo Wiring Information
Radio Constant 12v+ Wire: Orange
Radio Switched 12v+ Wire: Yellow
Radio Ground Wire: Black
Radio Illumination Wire: Gray
Stereo Dimmer Wire: Brown
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 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.
The front speakers are located in the doors and are 6.5 inches in diameter and 3.5 inches deep.
The rear speakers are the same.
This is for the Trailblazer LS.