Have read the threads on here about retro fitting a sat nav that involves cutting a large hole in the dash (eek). Call me a chicken but I'm thinking about one of the single din jobs with fold out screen. I fitted a double din job to another car - the unit was a Chinese cheapo and it has exceeded my expectations as the android system allows me to have my preferred sat nav plus a back up camera and iPod interface with steering wheel control ( Bluetooth for phone as well). Think this could be fun in a future E85 I'm tempted with rather than looking for one with original sat nav. Thoughts?