I just completed a bluetooth install on my 2001 530 with a TCU. My problem is that I have no audio. I have the antenna installed under the rear shelf in a location where there is no metal to interfere with signal coming into the cabin, and connected straight to the TCU. Pairing was successful. I can see my phone book on the mid. I can call another phone and the call will connect, but I cant hear then and they can't hear me. They can see my caller ID. I can even go through the menu on the mid and see signal strength. I don't have any sound. I can call from the mid, but cant hear anything. I have tried it with the SES jumper and without. No luck. I sure would appreciate some help. The only connections I have are the antenna and the 25 pin to 54 pin adapter cable to the TCU. Could it be a bad or incompatible TCU? I also have the upgraded mic in the stock location.
TCU part number is 4109120843

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