Hello Cobalters! This is my first post. I've owned a 2007 Cobalt for a few months now, and I'm having an issue with the rear floors being wet under the floor mats. I've never had any rear passengers. There is no smell, it's just wet. I read a thread at http://www.yourcobalt.com/forums/problems-service/31090-back-passenger-floorboard-soaked.html and they mentioned something about a sun roof drain being plugged. Where are these drains? Any other suggestions? Are there any plugs under the carpet? I am considering checking under the carpet. I did change out all the speakers, but I'm using foam around the door speakers. So I can't really see any water getting in thru the speakers. Any other suggestions? As always, thanks in advance!