Porsche bluetooth phone kit in Porsche 996 C4 cabrio (2000)
 

Does anyone know how to connect a bluetooth phone car kit so that it mutes the stereo and plays through the car speakers. As the Porsche has a built in amplifier and has a din connector and not an ISO connector I am told it cannot be done, surely one of you porsche wizards have done this before?? Can I buy a converter mute kit? Ta