2001 Gmc Sierra 1500 Radio Wiring Diagram. Orange radio accessory switched 12v wire. Run a wire to the fuse box or ignition switch harness for switched power.
If you need to take apart the steering column you will also need wiring. Radio battery constant 12v wire. Diode across relay coil.
January 7 2012 at 1123 pm.
Door speaker wiring diagram for 2002 sierra. Here is the diagram for 7 pin connector. 2001 gmc sierra radio wiring diagram source. Label it or splice to constant wire on aftermarket stereo first.