My camera in both our cars is located relatively close to the EyeSight camera. I’m definitely in the gray area, but I also tested the camera position extensively to see if EyeSight changed behavior before committing to that position permanently.
The exterior is mounted directly behind the rearview mirror because I have ADB which uses the EyeSight cameras to spot oncoming vehicles instead of needing a third camera:
The XV is mounted offset to EyeSight because this car has the third camera behind the rearview mirror. This position is not affecting the view in any way:
My recommendation is to get a piece of cardboard, cut it roughly the same size as what your mount would be and glue it to the windshield, then go for a test run on a safe, empty road. See if EyeSight complains and then adjust accordingly. If it generally doesn’t complain about it, then do a test drive by following other cars with adaptive cruise control at a safe distance so you can manually react in time if something goes wrong. If EyeSight is still happy after this, you have your final position.