Originally Posted by blacklimitedcoupe

I have a bluetooth system installed in my Crossfire. The stock radio comes set up so you can connect a bluetooth system to it. I purchased and installed a Motorola IHF-1000 system with voice-recognition. This system came with: microphone, keypad (answer/end call/volume), control module, external speaker. However, the external speaker is not needed because you can run it through the factory Infinity headunit. You will have to purchase the wiring adapter from Becker of North America (the company that makes the Mercedes Benz radios). Once installed, if a call comes in, the radio mutes and it displays "PHONE" on the headunit. The radio voice with say "Call from ______" and you can press the answer or end call button. Once the call is complete, the radio unmutes and the music resumes. It is a very nice system. If you need anymore information on it, let me know. I installed it myself so I know exactly how it works.