I have a 2002 C320 with no cell phone system installed. I have only the buttons for the factory integrated system, but not the actual system. I also don't have the Command system installed. I have a Nokia 6820 phone with bluetooth 1.1. Basically, I have an almost blank canvas with which to create any system that is cost effective. I was wondering if there were any aftermarket bluetooth systems that I could install in my car that would integrate with my car, or could be integrated with the speakers, existing microphone and antenna. I have looked a little at the Nokia 610 and 616, and Parrot CK3100 and CK3300 systems, which are compatible with my phone but I am not sure if they would be a good match for a Mercedes. Any input or recommendations would be appreciated.