Big thanks p3eps for your guide - I bought my BT module from
www.carsystems.pl and it arrived, from Poland, with all the cables and everything needed to do it quite simply. The mic is now successfully in the OEM slot above the front courtesy lights (accidentally chipped the lens on one - damn! Only comes down on one side!), and a good bit of coathanger poking meant I could get the mic wire around, and followed some CarSystems instructions
http://www.carsystems.home.pl/instrukcje/bluetooth%20golf%20VI.pdf (in addition to yours) to install the BT unit quite easily under the passenger seat as intended.
Amazingly, the buttons on the steering wheel work absolutely fine with no need for coding - I can press the phone button, view through my phonebook, etc., via the steering wheel. Odd that.
Tested the mic by calling my home phone - sounds nice and clear so no need for a mic on the pillar it seems.
However, like a complete and utter plonker I skipped over the warnings on this thread and disconnected the Passenger Airbag light beneath the Aircon when removing the trim, and now have an Airbag warning everytime I turn the ignition on. Oh dear (*hits head against wall*
).
Does anyone know someone with Vagcom in the Reading/Berkshire area that could reset it for me?