I have a 97 f150 4.6, and when the bass hits in my truck, the driver side door sounds like theres something metal rattling around in there, i took off the door and didnt see anything loose, but to be sure i took an impact to everything i could see, there is still the plastic cover over the door panel that sticks to it but i didnt want to remove it cause idk how to get it back on, anyone have any ideas what could commonly come loose in the door

 

Only way is to open that up a little bit. I'd do the old magnet fishing trick...

 

How do i put the plastic piece back on