[maverick83]

Ok. So I have taken a roll of this tape, not sure what it's called, but generally it's used to insulate windows and doors. I cut a small piece and pressed it as flat as I could, it tends to return to its original shape and size.

After pressing it flat, I pushed the side skirt down from the top with my thumb, and pushed the flattened foam in there. That's it. Never rattled since!

It used to iritate me very much especially while washing the car, as this would the only time I will listen to music from the outside.