I just bought a 2000 Audi A4 and when I tried to open the drivers door the key would not open the door.I removed the inner door panel and found out that someone at one time replaced the drivers door.Looks like they did not put the original door lock in the new drivers door.Is it possible to have a new key made for the drivers door?My concern is that if the auto locks fail to work how would I get into the car.