I have a 03 E60 525i Japanese import. It has a DVD navigation system in the boot and seems to be missing the disc or the flash card. Can I get a NZ version, if so where? Can I download a copy and burn to a disc? The radio also has the wrong frequencies but still works, can I get into a diagnostic and change to NZ? I live in Wanganui also so I am challenged with my location. Cheers guys