2003 Jetta 1.8T with sunroof driver's side floor mat gets soaked when driving in the rain.. Sunroof drain vents are clean. I've hosed, pressure washed, and blasted water at and around the sunroof, driver's door, and drivers's door window. I blasted two hoses into the cowl underneath the windshield and none of this heavy water produces a leak. I've sealed all the plastic body plugs on the driver's side floor pan on the underneath side of the car. If I drive the car in the rain, the driver's side floor mat gets wet and soggy, sometimes soggy enough to soak the back driver's side floor mat, too. I'd like to put an end to the water problem without having to purchase a bilge pump. Sorry if this is a duplicate post. What am I overlooking?