Flyingduck e46m3 0 Report post Posted July 5, 2012 (edited) Hi All look forward to hearing what you think the problem may be My E46 M3 with Harmon Karden has stopped working for the radio I can't even get it up on the screen, the TV works fine but with no sound same for the blue tooth phone system. The alternator failed on the car so did have no battery charge for a short period replace alternator but speakers not working Any ideas. I have checked all the fuses and had a scan run on it. Edited July 5, 2012 by Flyingduck e46m3 Quote Share this post Link to post Share on other sites
jochen 4 Report post Posted July 5, 2012 Hi All look forward to hearing what you think the problem may be My E46 M3 with Harmon Karden has stopped working for the radio I can't even get it up on the screen, the TV works fine but with no sound same for the blue tooth phone system. The alternator failed on the car so did have no battery charge for a short period replace alternator but speakers not working Any ideas. I have checked all the fuses and had a scan run on it. Do all controls and displays work properly? If so, likely just an amplifier or radio module problem Monitor the audio out lines of the radio module with a speaker /tem push wires into the output pins) Do you hear constant audio level sound? If so radio module is fine, problem will be a failled amplifier Quote Share this post Link to post Share on other sites