The problem I had might be an issue for you. When the head unit is recessed and screen attached the top of my screen hits the carbon fiber look trim piece right above causing pressure on the ribbon cable connector. If I lower it one notch the ribbon attachment hits the top of the metal install cage. So I had to have it down 2 notches and it slightly covers the HVAC temp.
The circled part is the ribbon connector. Be careful if you attach the screen after recessing the HU fully into the dash because you might run into the same issue.
I don't have a pic of where it currently sits now but will try and get one when I'm with my car.
This can probably be solved by making a small spacer and using longer screws for the mounts on the back of the screen.