I drive a 1994 LS, an im having a water leak on the driver's side flooring. I had the Cowl vent re-siliconed and and I re-did the weather stripping on the windshield but the water leak persists. It only leaks when it rains, right under the floor mats. There is absolutley no visible place from which the water is coming from, so I'm really dumbfounded. Also, the sunroof doesnt function and hasnt been opened in years, so I dont think it could be the drain tubes, but I dont know. Will someone please help??