thanks for all the responses. I actually bought the xm direct from Fairfax and did the install. Pretty straightforward as others said. I kind of stuffed it all in the trunk compartment when I was done. Since I am planning on getting a cd changer later, I will wait until then to clean it all up. I actually ran the antenna through the trunk (fold down seats) into the passenger area and velcroed it to the shelf by the back windshield. Reception is fine with only ocassional cut outs when under tunnels and surrounded by trees.
One question, is there anyway for the headunit to automatically display the artist and title without having to push the "inf" button each time? Right now, I have to push the inf button once for the artist and once again for the song name. Alternatively, is there a way to access the information from the steering wheel controls? Thanks again.