Interior Leak
 

I have a leak at the rear on both sides passenger and drivers. Whenever I wash the car it leaks into the headliner. Can't figure out where it is coming from. The roof trim at the rear was lifted a bit, but looking underneath I see no way for water to get in. I even glued the trim back down and still leaked again on both sides. IT is not coming from rear windows as that is dry. All I can think of is the rear windshield gasket. Anybody else come across this issue ? Including pic

This does not happen when it rains. I was even careful on the last wash to make sure water did not hit the car at an angle . Straight down while holding the hose above the roof.