Following some suggestions, I tried to unlock it, using its code (which I didn't know at the time). Now that I have the correct code, I cannot get the radio to flash 1000. It just sits there and says "SAFE". This is very depressing, I have waited hours, nights, days, and even disconnected and then reconnected the battery. Is there anything else I can do short of going to the dealership or buying another radio?

 

try this:

http://forums.audiworld.com/tt/msgs/1016529.phtml

http://forums.audiworld.com/a6/msgs/416359.phtml

You may need to leave the key on with the radio on for at least an hour. Then follow the procedure in your owners manual.