I'm a Xfire newbie and I have solved a CD storage problem in the limited cockpit of my Crossfire coupe. I found a "drop-in" mp3 solution to the stock Harmon-Becker CD radio. I installed a Blaupunkt Bahamas mp3 disk radio unit with only 2 tiny mods. The connectors were identical to the originals, but I had to buy a Euro to US type antenna adapterfrom Ebay (or Amazon). Also, pin one on the power connector must be disconnected since it is a "phone call mute" signal that is always on mute unless you disconnect it. If you have any experience installing car audio, it will be a piece of cake.
LG in TX
2004 Coupe