I have a 2007 Edge that I bought used. Have had a lot of knocks and rattles in the interior rear. Also, the Vista Roof had a rattle even on smooth roads. Had the headliner dropped and the Vista Roof was repaired per a service bulletin, but still have knocks and rattles which are hard to identify. The trim panels on the posts, etc, seem to be less that solidly installed., the seats seem to be tight and Ihave, I believe, secured the storage trays around the spare although the method of attachment seems somewhat cheesey. There are screw covers on the trim panels and I don't want to start prying them off in case I break them. Does anyone have any ideas about common causes of the noises described or a tip on removing the covers so I can see if the screws are tight?