Originally Posted by dirtybird819
naw its ur third brake light believe it or not. mine didnt always dripp and get wet in back sometime just behind the seat where the front and rear doors meet. water runs along head liner and cant make it past theat corner where the doors lock in. rap some electrical tape around the seems of ur third brk lite and see
you do realize this is an explorer and the third brake light is in the way way back lol. I figured it out it was the weather stripping on the driver door and the windshield seal.