I have in my possion a Delphi Grundig CD30 unit from a 2008 Zafira. They thought there was a CD in it but it was saying NO CD, so they put in another one!! The unit came to me with the radio working but the CD player not working. I stripped it down and removed both CD's from it, but when I put it back in it now just displays 88.7mhz on the display, and no matter what button I press it says "NO FUNCTION".
I have googled it and it is a REALLY common problem but I cant seem to find an answer to it other than "buy a new unit"!
Are there any known faults with this unit? Maybe the data in the 24c32 is corrupt? Does anyone have a schematic for this unit?