X5 E70 Navigation Upgrade

[racerecchs]

Hi all,
I have a 2009 3.0 e70 without nav but w/satellite. I'd like to gradually retrofit in nav and am starting with the monitor. I've searched and searched and cannot find a retrofit article on monitors for the e70's. Surely it cant be as simple as swapping out the 4:3 for the 16:9, can it? Is it plug and play? And once the 16:9 is in, does the display automatically recognize the widescreen, or continue to display a centered or offset 4:3 image?

THanks in advance to anyone who knows.