Im wiring my pioneer deh x3600ui to my pontiac grand am gt 2002 directly without a factory harness. Any diagrams out there i can use? The red wire on my pioneer is for the ignition but i cant find that wire on the pontiac.
if u cant find a diagram u can always check the speakers for the colors of the wires and then just try to get a hold a cheap little voltage meter like the one below just to find ur ground, remote, and battery wire.