Could anyone help me to have a normal display mode on my Astra? The original audio CD30 went to the trash so I got a 2nd hand unit. However the dealer's taken down the radio from a crashed car and didn't know anything about its code or if it's divorced from its original display.. Now the only message the I have on my display is Display safe. Attached is the top label of the audio. The numbers on it are as follows: 497316088 No 13289926 at the bottom to the bar code-91043852 Thanks in advance!
