i have a 2006 ford five hundred and everytime it rains the back doors fill all the way up with water and slosh around like huge water just while i am driving. the only way to get the water out is to open the doors and get down and lift the weather stripping up so the water can rush out like letting the water out of a water bed!!! im afraid it will eventually rust the inside of my doors out. anyone with similar problems or any suggestions?