I am considering installing the XM Direct package. Is there an install guide floating around? I'd like to know the difficulty level before going forward with it. My X5 is a 2006 with a build date of 2005/10, no NAV, Business CD w/ DSP equipped. I would really like to have SAT radio in this vehicle.

Any input, guidance or support would be appreciated. I've been reading up on stuff on this site for days - information overload, but thanks to all.

Cheers,
V.