Have you ever had it apart? The plastic "finger clips" or whatever you want
to call them don't go back in as tight as they were when you open the panel
and then close it. Try ordering new ones from your dealer. ($20 +/-)
You'll need 6 or 8 for each door. I think what you're hearing is the door
panel rubbing on the styrofoam.. actually the styrofoam may be attached to
the door panel and that may be rubbing in the insides of the door. Either
way those clips will hold it tighter if the old ones are worn out from you
leaning on the door.
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