For the wet floorboards, you have to unclog a couple of drains. If the floor is wet in the front, you've got to remove the outside cowling and unclog the two drains on either side of the blower motor. You;ll need a wire coathanger to run down the drains and some water or compressed air to work the dirt out. I was able to repot a houseplant with all the junk in mine. If the back seat floorboards are wet, check the drains in the trak of the sunroof. again, you'll need your trusty wire coathanger. Also check the taillight seals to make sure they are intact. You might get condensation in your trunk and damp floorboards in the back seats.