I've been getting this constant rattling whenever I hit a bump or play any music with any hint of bass. I found out that its because there is a slight gap between the triangle trim piece above my passenger side fender. My driver side is perfectly snug and does not rattle at all.

How would I go about fixing this?

 

I have the same issue on the same side so in for answers.

I figure probably take it apart and replace clips or tighten whatever holds it in.

This is in addition to a window rattle on the same side i've developed. Can't hear it unless the driver's window is down... not sure if it's related or the same thing causing it, really annoying.

 

Manual says to release clip using proper tool at the top then slide back to release a couple of tabs. Maybe a bit of silicone on underside and replace?

Check the piece of cowling in the corner of windshield. That is the piece that usually rattles sounding like it comes from glove box area. Just put a tiny piece of cloth/shop rag under corner solves it.