I finally found a solution to install a bluetooth phone kit into a 97 7 series that uses the car's internal speakers and mutes the radio.
Buy an autolead from:
www.Nexxia.co.uk
Every auto install shop I visited here in Los Angeles, California USA said the BMW hates when you fool with the wiring on their DSP systems. This autolead seems to work. If only it didn't cost almost 50 dollars!
Buy an autolead from:
www.Nexxia.co.uk
Every auto install shop I visited here in Los Angeles, California USA said the BMW hates when you fool with the wiring on their DSP systems. This autolead seems to work. If only it didn't cost almost 50 dollars!