You may want to consider a more matt surface on the top of the dash and air vent. Because the screen is at a steep angle the dash top reflected in the screen on a sunny day can be be too much. My dash is leather covered and has a satin finish. It was bad on sunny days so I have a piece of black alcantara now and that has made a huge difference. Something black and with a matt finish will make a big difference to seeing out on a bright sunny day.
Cheers
Mike