So, my navigation DVD disc changer, broke down (Takes the disc, makes some noise, and ejects it). So i took the whole navigation block out, disconected everything, removed the DVD changer, took it to service, as they are sayng - its rapaired, but i assembled everything back, connected all wires, everything works fine..exept navigation, now the navi dvd changer block wont take any cds, i mean its the same as if i put a cd into unplugged dvd changer (Nothing hapens), any ideas? did they broke down my dvd **** changer completely, or there is some kind of anti thieft thing?

BTW it shows an error "Program Cannot Be Read Please Consult To A Dealer", and some japanese characters.

Any ideas?