Aug 4, 2008 #1 E ervinr Member Joined Apr 28, 2008 Messages 36 Reaction score 0 Points 6 On the interior rear view mirror what does that little black circle thing (at the top right) do? Looking from the outside at the windshield, the black circle hole is at the top left
On the interior rear view mirror what does that little black circle thing (at the top right) do? Looking from the outside at the windshield, the black circle hole is at the top left