I setup the XM tunner for my Alpine 7894 last night. I have to say I am very very pleased with both the quality of the sound and the selection of channels. I will probably now hold of on getting a MP3 changer. Oh ya, the Playboy channel is kinda cool too ;-)

 

If you already have a XM ready head unit how much is installation?

 

I agree, XM is awesome. I don't know what I'd do w/o it. The sound quality is great.

 

It was free for me. ;-), except for the price of the tunner and antenna. They came out to $280. I have an Alpine 7894 with an Alpine tunner and a Terk antenna.