I believe I've got a water leak at the sunroof, or a drain hose is off. The rear of the roof is wet.

I tried prying the upright interior panel off and the clip broke. I've searched forums but can't find any instructions on proper removal of roof and upright panels, just that "it's easy". Can anyone help? Thanks!

 

you should first check the roof drain END at the rear pass side in the trunk
under the jack area itll pull out of the grommet its in
it has a y pipe that connects the antenna drain tube and rear pass roof drain
and the y part clogs clean it +pop it back in
then open roof and pour a little water at each corner in the gutter and check to see it drip out from under the car at four spots behind the wheels