My battery died & my radio will not function. I did find the link for info:

Model : Becker 4462

Serial #: 15064654

Radio: CDR - 220

Spoken with Porsche dealer (even gave my VIN #) & gave me two codes...did not work plus found a 3rd on website. Called Porsche USA, could not help me & response was "really don't know much about the cars"...NOT KIDDDING!!! If anyone can steer me in right direction, would appreciate!!