I've got a 2010 GTI with RCD-510 and 9W2 bluetooth, and a Motorola cellphone.

I got the phone and car to link, no problem, and the in-car phone features work as expected.

The problem I'm having ever since activating the phone's bluetooth is that often when I'm in the house, and the car's parked in the garage, when I go to answer a call on the handset there's no audio coming through the handset. It seems as though the handset is transferring the audio to the car, even though I'm not in the car.

If I use the phone well away from the car, I get no problems.

Can anyone tell me what the fix is for this?