Every now and then, when I start the H2, the Navigation Radio doesn't illuminate. The functions can still be controlled via the steering wheel controls, but the screen stays dark/unpowered. After some driving (anywhere from 3 - 10 minutes), the screen will display the screen with the globe and the H2 symbol, then everything works as advertised. Any idea where I may have or short. Or worse, is the screen starting to go bad and I need to start thinking about a replacement? Anybody experience this ???

 

I would think it's in the head unit.