Fritzy

Hi Please excuse my digging up a very old thread here, but I have been searching everywhere to find an answer to this. I just imported a Japanese spec BMW 540i m sport 2002. It has the Japanese navigation system as well as a separate VICS unit and phone module. i thought I'd be clever and buy an mk4 computer and just switch it over and hey presto it would work. But no...it's a different plug. I've coded the stereo to work in the uk as well as the display, and I'm reasonably confident with ncs expert now, but this sat nav thing has got me stumped. I'm sure the information I need is here somewhere, but I'm having trouble finding what I need. thanks Mark