I have two white wires left...one is a speaker wire and the other is the constant 12v wire and I don't know which is which. They are the same thickness so unless one of you guys know I'm pretty much screwed here. Also, I have a black ground wire sticking out of the wiring harness and the ground wire from my stereo harness doesn't look like they should attach to each other. This is my first install and I've got everything else hooked up. Just need some pointers.
How would we be able to tell you the difference between two identical white wires? Use the one on the left? Use a volt meter, and find out which wire has voltage on it. A speaker wire won't test with voltage, a constant power wire will. You can always connect the head unit's ground wire to a metal point on the sub-dash. Edit: if you don't want to use the factory ground wire, it doesn't really need to be connected to anything. I suppose you could attach it to the same spot you connect the head unit's ground wire.
1997 Geo Tracker Car Stereo Wiring Diagram Car Radio Battery Constant 12v+ Wire: White Car Radio Accessory Switched 12v+ Wire: White/Black Car Radio Ground Wire: Black Car Radio Illumination Wire: Red/Yellow Car Stereo Dimmer Wire: Red/Green Car Stereo Antenna Trigger Wire: N/A Car Stereo Amp Trigger Wire: N/A Car Stereo Amplifier Location: N/A Car Audio Front Speakers Size: N/A Car Audio Front Speakers Location: N/A Left Front Speaker Positive Wire (+): White Left Front Speaker Negative Wire (-): Black/Blue Right Front Speaker Positive Wire (+): Blue Right Front Speaker Negative Wire (-): White/Red Car Audio Rear Speakers Size: N/A Car Audio Rear Speakers Location: N/A Left Rear Speaker Positive Wire (+): Light Green Left Rear Speaker Negative Wire (-): Light Green/Black Right Rear Speaker Positive Wire (+): Gray Right Rear Speaker Negative Wire (-): Gray/Black what you need is a multi meter or something to test for current you could get a 12v light bulb hook to ground then try each white wire on a 12 light buld the end two meral contacts seperated by a small plastic area ground from tracker to one metal area positive or white to the other metal area dont let the wires touch which ever white wire cause light to go on is 12v you may have to have key turned over for power to flow
