I'm one of those who also prefers a simple compass on the rear view mirror. I have a 2010 LS460L with Nav and would really, really like the standard mirror that has a compass incorporated rather than having to have the NAV/MAP screen up all the time. Does anyone know what this would entail? Is it possible that I'd only have to switch out the mirror? or is it more complicated and would involve wiring or harness change. Appreciate any feedback or lesson learned.

Tammy