My black plastic tray, the one the hold the intake screens for the interior ventiation system under the hood and behind the windshield wipers, is leaking rainwater (and car wash water) on to the engine shroud. It looks like it is formed from two halves that are joined in the center of the car, and it is leaking from the joint. Anybody else notice this on theirs?

Aside from the shround always getting dirty, I am concerned about corrosion.