This may sound a bit strange, but I was noticing on E46s with the nav system the climate controls are where the sunglasses holders are. Suppose you had a car without NAV and wanted to do the same. Would the faceplate/controls fit below. Is the faceplate different in cars with the NAV system?
I'm thinking about getting a GPS system of some sort and stashing it in the location where the climate control "was". Perhaps a custom pull-out/flip-out LCD screen....thoughts?