First off, i've been a volkswagen guy for the last 4 years....ended up trading my R32 (best car i have ever owned) for a 04 mustang gt...i know alot about VW's but nothing about the fords. In the mustang, i have a hook up for satellite radio...so with that, how can i get XM radio? What equipment do i need? I figure i just need a receiver and a antenna...but what about wiring? Is all the wiring already there, or do i have to custom everything?