Hi Folks, very happy to find this site with lots of interesting areas. PLUS I have the same problem as many others I see. My Opel Signum was sold to me by a main dealer without the radio car pass information so now 6 years on I need to replace the battery the radio has died and they want to charge me for the code! All help gratefully received. Siemens factory fitted CDR2005(E) and hidden under the bar code label I have found GM 020532041608 Thanks in advance!