an eighteen wheeler forced me to the left and my driver's door hit one of those orange construction barrels on the freeway. the mirror is now hanging down. the only thing holding it is the electrical wire. but that goes down in the door. i can't see a connector. it's a non-folding mirror on a 1997 intrepid. i ordered a replacement from Rockauto but i don't have the slightest idea how to install it. help me. i'm a newbie.