Hi, can anyone assist. I bought from new a May 2007 A4 Cabriolet, 3.2 quattro with Sat Nav (colour screen) and bose speakers but stupidly never ordered the bluetooth. I am looking to see if I can fit one, either buy the actual unit (as I have all the steering wheel controls) or an after market one. So my question is, has anyone done either or can you advise of a decent aftermarket adapter? I am not really bothered about the phone, its more to blue tooth my devices for music etc. Thanks for any help anyone can give.