What is the size of the area to the right of the mirror where the dots are that is supposed to be free of the coating?
2.5" wide at the top, 1.5" at the bottom, 3.5" high
That sounds like a plenty big enough space for my radar detector receiver area so now the question is whether or not the area where the suction cups mount will allow the detector to be mounted to accommodate that hole in the windshield?
If not, there could be a market for a mount that a detector can sit on instead of hang from that would allow proper positioning.
Is there much room on the windshield above this area?
No. The dots go to the top of the windshield. I measured the 2.5" width about 1/4" from the top of the windshield.