How has this been holding up? I see water around my door frame (X3) and thought it might be the seal at the top of the door that runs vertically and appears to have a drain. But now I realize I see a bit of water where the door panel meets the metal door at the bottom. How did you test the door drain, where does the water enter? Did you get the 3m Windo-weld at a local parts store? Thanks for the detailed post!