I crunched the passenger side mirror. The Dart is wide and the garage is not. I purchased a replacement that came off a wrecked car. It is in perfect condition. I have seen posts about upgrading the mirrors but nothing on how to remove them. I see 3 threaded metal posts on the back of the mirror assembly along with a black and a white plastic post. Are there fasteners on the inside of the car or is the type that you just give it a good yank and it will pop off?