Just bought a Vectra C SRi with satnav, but the headunit is missing. I have just bought a NAV70 headunit from eBay, the auction reads 'IM NOT SURE IF THIS UNIT HAS BEEN DIVORSED FROM THE ORIGNAL CAR AS I BOUGHT IT FROM A BREAKERS'.
So assuming the worst scenario what will I need to do? I don't have any manuals/codes for my vehicle!
Any help will be much appreciated, thanks!