Had some paypal money burning a hole in my pocket so I splurged and bought an XM radio Delphi skyfi unit with car and home kit. It's a unit that can dock into the car and my home stereo.
Installation was very easy. I mounted the display docking station right above the top left corner of my glove box. I angled it facing the driver side slightly. The antenna was mounted on my trunk in the center about 3" from my rear window (magnetic) and ran the line through the passthrough (temporary) to the main unit. I used the tape adapter since we have a tape deck stock instead of the FM modulator. Still need to neaten up the wires.
The display is nice and big maybe 2"x4" with the whole unit not much bigger. Back lit red which I was unsure of but its nice on the eyes at night.
The music is awesome! Superb digital quality with no distortion I can hear. Too many channels to even list. Everything separated by genre, artist, and title. You can search around for songs/artists while staying on the same station.
In addition there are about 20 news channels, weather, comedy, E!, books on tape, MTV, and even playboy My only problem is that it is very distracting playing with the remote searching channels while driving. Once I get some presets it will be safer.
With the prices of CD's and all the crap my local radio stations play I think its well worth the money.