Alright, I'm getting frustrated with the hunt for the "right" wiring harness...
I've seen people have used the 70-2003 on a 04 and the only thing that was lost was door chimes.
Today I stopped at 2 local shops and they said I needed the $120 (MSRP) wiring harness. The first shop just said that running the cheap one would mess up my car, the other said my airbags, abs, dash lights and some other stuff won't work right.
I'd rather not pay $70+ for a harness if I can do the same with a $10 harness and just lose door chimes...
FWIW, I went to wal-mart today and they had a GM harness that said it went up to 04 for a GP... But it looked kinda funny to me...
Anybody have any input?