I am getting my X5 E70 2007in a week or so. I am getting the one with no GPS and also willing to install it at some point.
I also have the same question: Can someone confirm that it is possible to perform direct replacement of the existed 4:3 screen to wide one 16:9 ? For example on older E53 model it was possible and you could just simply replace 4:3 nav screen for 16:9 one. However I am not sure about newer E70 model. Did anyone tried it ? Can we get a pictures of the backside of the 16:9 and 4:3 screens ? Just to compare connectors.
My assumption is that it should be possible to directly repalce 4:3 to 16:9 screens and everything should work well. I was reading many different articles on the net and most people saying it should work.

Lets share information here about that.