So I went out to the car the other day after it had rained heavily, started driving and strangely my left arm became rather wet. It looks to me like the water is coming from behind the map light and that odd little grill next to it. I assume this is due to either a leaking sunroof or the top of the windscreen leaking? There's no water in the foot wells and the headlining surrounding the area is bone dry. Anyone have any ideas which seal is to blame?