hi guys, need your help. Disconnected the battery,and the radio asked for a code. I put the code from my handbook in, but nothing happens? When i put the correct code in and press the on off button it flashes safe, then a little number 1 came up on the bottom left. I repeated it again and then a 2 came up. I don't want to try it again incase it blocks but what do I do? Please help got a 2 hour journey tomorrow and with no radio it will kill me. Thanks