Ok guys, I just installed a Comand 2.0 into my 2000 E320 4 Matic Wagon. The install went pretty good - the radio works fine, the steering wheel controls control the volume and change the stations just fine. The phone (V60) and the CD Changer are no longer working - which was to be expected - this will need to be programmed by the dealer - the problem I'm having is the volume control on the unit itself, first was not working at all - then I found by pressing it in and turning it it would work. A little while later, it would work normally. Then a little while later it would not work at all! I then did a system reset (Depress the 1,3 and mute while on the radio) and it started working for a few minutes then stopped. I took it to the dealer - they could not get there computer to talk to it at all - I'm going to talk to the tech tomorrow - What do you guys think? The head unit is bad? If so, where can I send it to for repair? Any help would be appreciated!