Hello people I bought my wife a facelift om. b 02. radio navi tel. bc everything ran except for the changer which was cdc safe. so to the foh and with tech2 check. the came with the 4 digit code but not pure. the end of the song was the then radio safe display saef etc. appeared. now nothing goes at all. when he expanded the radio we fell on the serial number of ncdc2015 was different than on the radio pass. so with the serial number of the built-in radio at opel den co with the new code he also does not come in because the radio is now blocked (I guess by entering the radio code from the serial.installed radios) at the previous I called the one who said he had bought the changer and had the foh married the had but had no other code than the first code that brought everything to a standstill with me. could someone please help me ?