Anyone had any issues with Gingerbread 2.3.3 and Volkswagen factory-fitted RNS 510 bluetooth handsfree setup on a Tiguan? I can occasionally get the phone to connect to the car and perhaps make/receive one or two calls, then it tries to play music from the phone via the RNS510 (even when I am trying to listen to the radio) and then dies and won't re-connect with the car, sometimes for a day or two. I've been advised to delete the phone book facility - but can't! I'm assuming some software/hardware incompatibility, but unsure if it is the phone or the car, as I had similar problems with an early Desire and a five year-old Audi A4 with bluetooth prep. Any help would be appreciated!