also, since my car isn't compatable, what wiring harness do I buy?

I have what you would call an (A2) 2003 single CD (w/AM/FM button and CD/Aux button) and moon and tunes and I'm trying to figure out how to hardwire my satellite radio.I checked out the products that you recommended (PAC Aux-Box, Peripheral AUX2CAR, Neo Auxin, and GM12-AUX. They all say that my car ...