How do I install the GMRC-01 in a 2001 Pontiac Sunfire?

[Tim B]

I have disconnected the factory radio and ordered a GMRC-01 with a factory connectable harness, but I'm not sure where to tie the accesory switch line into for the chime unit. I've tracked down all the wires in a repair manual wiring schematic, but I don't want to interfere with the data bus by tieing into the wrong line, which line do I tie into?

 

[designkidcom]

The harness you purchased should plug into the vehicle side wiring. You then match the colors from the harness that plugs into the vehicle side into the harness that plugs into the new radio. The red accessory wires should be connected together. No need to run an accessory wire, since the harness provides one for you. Aside from the chime, it's the other main feature.