Hey guys!

I'm having the same issue as a few before me with the white stripes on navi screen.
Menu, display, Nav buttons are activating the black screen with vertical stripes.
Also when pressing language, maintenance and some other ones incl. rear camera screen it switches to this screen.
Meaning Tel., Audio and screen showing hybrid info working just fine.

All this happened in sync. with an issue I had with ignition switch. Brought my car to the dealer and after that this isn't working.
Rear camera not working happen in combination with ignition switch blowing fuses but navi screen was working. This can mean that it was on it's way to give up even before the dealer troubleshooted ignition switch issue.
However I bought a DVD unit (used) recommended by my dealer and it didn't solved the issue. Anyone have good ideas?
I would love to have wiring diagram on Navi part, where can I find it, anyone having it?
I live in Europe and my car is European model, RX400h 2007