02 burb leaking from sun visor?

[blackbeaSSt]

during the torrential downpours we had here in SC yesterday i ran out to the burb to grab something and the entire passenger seat/door/dash was covered in water. i looked up and it was coming from the outter hinge of the sun visor.

is it a sunroof leak? windshield leak? how would i go about trying to find it? the crazy part is we've owned it for 3 years and have only noticed a little water dripping in and thought nothing of it. also there is no sagging in the visor/headliner.