Can anybody help please? My battery went flat on my Vauxhall Astra and I need the radio code for my VDO CDR 500 radio. The numbers on the unit are >PA6-GF-15< and GM 13 107 918. Appreciate any help that you can give.
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)