when i came to sell my single din headunit, I need the code as it had been lost by the previous owner so i rang a few dealers
Chesterfield Audi
You will need to bring the car to us so we can plug it into the computer to get the code - £20
Sheffield Audi
Same but £25
Derby Audi
Same £25
So I thought I would try one last stealer
Macclesfield Audi
Spoke to nice girl in service
Matt - I have misplaced my radio code
Audi - You will need to bring the car to us so we can get the serial number of the radio and check it on the Audi central computer.
Matt - If I remove the radio and get the serial number and give it you over the phone will that do"
Audi - Yes
Matt - Will there be a charge
Audi - No, just give us an hour and we will call you back
RESULT
Got the serial number of the radio and called them back, they didnt ask for any details of the car, i'm not even a customer there. 15 minutes later she called me back