Hi! After disconnecting the battery in my Vectra 98, my radio (CDR 500) has got in "safe" mode. I need to type a 4 digit code to open it again... My problem is that this code was made by the last owner of my car, and I haven't a clue what the correct numbers are. Is it possible for an Opel dealer to help me.....any other solution?? Thanx FCW