I have taken my XK to 3 garages so far, 2 of them Jaguar specialists, to see if they could repair the sat nav or somehow get it working again, but I have had no luck at all. Does anybody know where I could go next to resolve the problem or is there a spare sat nav out there? My understanding is they are no longer made for the XK and so it has to be a complete sat nav/electrical refit.