Today I decided to give my beetle a nice interior cleaning, when I pulled all the monster mats the rear of the car smelled musty but I didn't think anything of it. When I went to vaccine the car out in the rear the driver side rear floor is wet. It's wet more toward the center of the floor and all edges are dry. This areas had a mat over it and no one has sat in the rear of my car is forever. Where's the water coming from. We've had alot of rain lately in NY. I'll just shop vac it out and pray it stops for now.