Creak/Rattle from Plastic Wiper Cowl?

G'day,

I've been hearing a bit of a rattle/creaking noise intermittently the past few weeks. It's clearly emanating from somewhere near the front of the dash/bottom of the windshield. I haven't been able to recreate it or silence it by pressing on anything from the inside, and I'm starting to think it's the plastic cowl on the outside that hugs the windshield under the wipers.

Has anyone had this piece make noise before? Any possible fixes? I washed the truck and fiddled with it a little bit earlier today (and wiped around the thing with a microfiber to get rid of any possible dirt/debris) and it didn't seem to be doing it afterwards, but I'm not sure. 2014 DCLB.

Thanks!

 

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