So I have a 2007 mazda cx-7, it comes with original factory navigation system. I think the map is out of date, now the screen is so dark and I can't even see clear picture from the back cam.

I searched online and see a lots of off market ones but only for the cars without the navigation system from factory.

Has anyone know how to replace the factory navigation system for the 2007 cx-7?

Any help would be great.

Thanks