Can anyone help. I purchase an 2012 A6 and was supplied with a SD card for the satnav in its wallet, but when you insert it, it says 'insert a valid SD card'. I asked my local Audi dealer who said that it needed paired with the code that it was supplied with seemingly printed on the envelope that the wallet and card was in. I said that there was no envelope with the wallet the Rep said, "no they throw it away after they install the card" and said that you would have to buy a new one at £220 and £50 to programme it in. Is there anywhere that would be able to help?