Another Noob I am. Wow! I sound like yoda. Anyway what a fantastic install. Very impressive. I would like to ask a quasi related question here;
I currently have a 2007 A3 with a Concert II with the optional blue tooth adapter via the technology package.
I am planning on installing an after market head unit that will connect to a blue tooth phone unit via an adapter. Kenwood, Pioneer or Blaupunkt.
The question becomes then, will my OEM blue tooth adapter work, with some modifications of course.
It looks as though from this install that the OEM blue tooth adapter only connects to the factory stereo in three ways: 1. mute connection; 2. + speaker; and 3. - speaker.
Thus, would I be correct in thinking that it would be just a matter of connecting those 3 wires, at least as far as connecting the OEM blue tooth to an after market stereo.