When starting to replace the rubber seal or grommet, I had to remove the material covering it. It was held in place by two plastic pieces that look like a shaft with a large flat head. Naturally, these broke in half. Can they be purchased at an auto store? I also had to remove the rear light holder as it was on top of the cover. I was a bit surprised at the engineering of it. I've seen much better systems on other cars. Frankie