66 Dart driver's side mirror not same as 67 up?
It just looks like the stud is in the wrong place. Can the stud be shifted to where that screw is toward the front? Disregard the other holes- there was an aftermarket mirror on the door.
EDIT- the stud is in the correct place but the cables are not positioned to go through the large hole. I wonder if they are routing incorrectly. I can't really see how they could be routed differently without severe bends.