call911s

Now that its getting warm again, all of the noise gremlins seem to be creeping out. I have a sticky/popping noise between the windshield defroster vent and the windshield (straight back from the gauge cluster). It sounds like its plastic, and when I push on that small strip of the dash, I can replicate the noise. The noise seems to occur when the going over bumps in the road. Any ideas on how to fix it outside of full dash removal? Thanks.