Crossfiregal,

if you set on installing a new head unit with Sat functions most of the places you purchase from will do it. Just go over the condition of your car with them to show you have no existing damage.

I have XM, installed an XM2GO unit which use everywhere, office, home, car, travel. It came with a complete kit, see my gallery I have some pics of how the cradle was installed. Wiring was pretty easy going this route, power and antenna.