My windsheild is a little different than others. I cannot place the detector flush to the roofline unless it is pretty far off axis due to a black film strip that comes down behind the mirror and extends about 8 inches in each direction. The result is that I have to choos between:
a. Off Axis- i.e. at top of windshield but over driver head
b. Off Axis- i.e. at top of windshield but over passenger head
c. Current Location (see picture link)- slight to right of center and about 4 inches down from the top of the glass. Rear antenna has clear line of sight.
Take a look at this image. The red box is about where I have the detector. Also if you look closely, you can see the blacked out area on the glass I am talking about.
Which option would you go with or is there a 4th option that is even better?