Tks so far on all the great advice.
Any one ever used or heard of the Alpine head unit CDA-9820XM? Any comments on Alpine head units in general? Quality of sound - Reliability - User friendly - Ability to see in sunshine etc...

It has built in XM tuner. No second tuner needed. I want XM and like the idea of not having to add an annoying 2nd tuner that sticks out of the dash.

Grandprixa1