hi im looking to see if any one would have a code for a radio in my opel meriva i never got a code with the car. the radio in it is a seimans vdo 500cdr the sn number on the side of the radio is GM 020543209285. THANKS FOR ALL YOUR HELP
Unfortunately the majority of SIEMENS/VDO codes (including your CDR500) will NOT be available for free (or cheap) from anywhere on the Internet as access is required to the original factory database...which is not commercially available..
Try your Main Dealer or a Decoding Service or your local Car Radio / Audio Shop (who are normally the cheapest option) who will connect it to a laptop to read/recode the memory chip (EEPROM)