Anyone out there with a BMW and have the 16:9 6.5" On board monitor display?

I am planning on fitting a touch screen in it and I am wondering who else though of this as well as your input regarding this screen. Like, no easy solution to feed VGA signal into the monitor without building a RGsB interface.

I read somewhere where a guy replaced the LCD panel with one that supports VGA right in the same housing and he converted the RGB signal from the Nav to feed into the composite input of the screen. Big project though.