I had the problem that the previous owner of my Alfa had lost the radio code. Being the Alpine header it is not possible to get an online code for it. Whitequay Alfa in Reading quoted over £700 pounds for a new unit, deed not seem actively helpful in trying to assist even though I had taken in my V% and ID, they did not even bother to phone back to say they could not get it, and even if they had, wanted £11 for the service.
Found a crowd called DND Services on the internet. Stripped out the header, paid £25.00 on line, enclosed a copy of the receipt and sent it off Tuesday morning, received it back, unlocked with new code taped to the top of the unit Friday lunch time.....back in the car in 5 minutes and now have sound back in the car.