I just picked up a nice new passenger's side mirror for my S3 but now I can't get the old one out.......I'm into the door and I see the bracket for the mirror is held on by two 13mm nuts, but I can't get them to budge! I think if I could get my ratchet with an extender on the nut, I could break it loose, but because of the geometry of the door I can't do that (extender needs to swing up another 10 degrees or so to be vertical on the nut, but it can't because the opening on the inside panel of the door is too low). I tried it with no extender and just putting my ratchet up into the door, but I can't get a good enough grip on it apparently...ditto when attempting to use a box wrench. I don't see any signs of corrosion in there, the nuts are just torqued down like crazy....or is there some sort of thread locking compound used by the factory? I can put a fair amount of force on the nut with a box wrench, but not enough. What's the trick?