Hi Rich - really useful, thanks, and surprise surprise I have that part in exactly the same place. So maybe I'm only missing the actuator (4HO 907 601 E, £140 and available) that's supposedly somewhere near the rear silencer.Hi Dave, I saw another thread on here about position of the sound generator so took a look and I have one in the same place in the door on the passenger side of the scuttle panel there's a fluid reservoir due to packaging but just about managed to get the part number. Should be easy to see if you have the box or wiring loom.
Emailed the dealer principal on Wednesday - heard nothing back. Two further throws of the dice to go - book it in at my local dealer and play dumb; email Audi UK director.