...Vectra 04 plate.? The battery was disconnected during the week as the car was in the garage getting some work done and it has went into safe mode. I have my security code but I cant work out what to do in order to enter it. I have checked the manual but I cannot see instructions on how to do this at all. I am a taxi driver and in my car for 12-14 hours so not having the radio is driving me mad. Any help would be great thank you.