I found this Kenwood unit at Crutchfield it plugs into the input in the glove box and your Ipod and satellite radio box plugs into it. It was normally $89 for the KOS A300 and the Sirius box but they had a $50 rebate so the whole thing was $39. I paid $240 for installation and the installer moved my Valentine 1 power cord so I could have the detector up by the visor instead of low on the dash like the previous owner.
Looking for suggestions on mounting the BMW like control knob. I had the installer leave it loose for now until I figure something out. The only idea right now is to use a ProClip mount.
Control knob
Display hidden behind ashtray door
Display close up
ProClip option