This works for me, your mileage may vary.
It does block some of the screen, but the menu items that are behind the radio at the bottom are rarely used by me (I can reach them, just not a straight shot) and from the drivers postition, you can see the vast majority of the screen. Some radio head display's may not be as tall and will block less. I like this position due to fact that the display is perfectly placed for my liking, not too low to take eyes off of road, not on the top dash where the sun hits it, not overhead where it's hard to view. With my mount, the display mounting plate can be easily slid out and removed.
Since there is no permanent installation screw holes, or other marks made, doesn't hurt to give it a try.
73
KE6GYD