Originally Posted by RCUK
wouldnt be surprised is there was an aftermarket retro fit solution for the nav as the screen is already there!
All you need is the GPS unit and the software and thats it.
I remember googling it when i had a new 5 as i didnt have nav, but changed jobs and gave the car back so didnt look any further.
there's probably more chance of a nav retro then xenon retro looking at http://www.bimmer-tech.net/
seems a bit backwards talking about retro fits for a vehicle that isn't even bought yet!