Recently traded in my 2010 Sport for a 2019 Laramie. Loving the truck so far...except for those dang door rattles! I've read many threads about it already, and will be removing door panels and trying to quiet things down as best I can soon. The rear passenger side door however, has a "flapping plastic" sound that you really only hear when closing the door, or if you open the door and move it back and forth. Anyone know what that might be? I pulled the door panel off and it's definitely behind the inner door panel. Sounds like it's right behind the exterior door handle. Handle still functions just fine. I started to remove the inner door panel, but after watching a video to see just how involved it is with the window regulator and door latch/handle, I didn't have time to pull it off today to fully investigate. Just figured I'd ask to see if anyone is familiar with the "flapping plastic" noise behind the exterior door handle and if they know what might be causing it. Thanks!