I took a look at mine. Apparently the plastic cowl snaps into a channel at the base of the windshield. Mine was not. I snapped it back in and the noise seems to have gone away. The only problem I have is that right above a ground for the passenger side wiper motor it looks like they burned through the plastic to do the recall. I'm waaaaaay not happy with this because they just put one of those caps with the teeth on it in the hole but it doesn't even come close to fitting so it may be a source of a rattle still. I'm going to take it to my service advisor on Thursday and see what he can do about it. I hope they replace so there is no hole anymore.
2014 Honda Accord Sport