Autoblog has an
article about Azentek adding a navigation system to the rear view mirror. My car has a factory navigation system in the center console which I never use. It is too complicated, and to be truthful, the $80 GPS/Nav system that sit on top of the dashboard are better than the factory one.
Additionally, I am more likely to use maps.google on my iPhone for last minute refined directions than anything else these days. When-ever I rent a car I always get the dashboard nav-system for the extra $9 a day.
The most useful visual system on my car is the Heads Up Display [HUD] which sits perfectly in my field of view. I don't look at the dials in the dashboard any longer. If any system should be expanded it is probably the HUD.
