Just a quick demo of my n900 plugged into my 2006 Acura TL. Used a universal video to nav unit and tapped into my XM tuner for audio and Navigation system. Sound is way better than the fmtx even though I had long wired running from the back of the vehicle where the system is located. More later.

http://www.youtube.com/watch?v=yntH0Ym2n5A