In trying to find a code for my sons radio, I was told to look for a 14 digit serial number - I can only find a 15 digit number. Any help would be much apprciated. The code is VO9560V2041038B, the format is similar to another volvo unit I have. Both are from the late 1990's Unfortunately I think a previous owner may have changed it so cannot search on VIN, but havent checked with a dealer yet. If you can help with a code or point me in the rigt direction I would be grateful. Thanks WAF