I received my package on Saturday and just got done with the install, it was a pain but well worth it. The instructions on the website didn't exactly line up with my car but overall the differences were minor, anyone with a half decent brain could figure it out. I ended up ordering the prokit and ran the wires for the iPod into the armrest, I also connected the power wire to the switched since I have an older iPod that I'm just going to leave in the car.
Overall, great product, I used to miss my XM but now I'm very content.