sunroof drain locations

[ixmachine]

does anyone have a diagram of the drain locations on the sunroof or the headliner? I'm wondering if it's possible that the water can trickle from there and into my trunk (getting a good bit of it flowing into my trunk from behind the wheel well).

[325ixa]

drain pipes are in each pillar. rear are conected to the vent openings



my second guess would be a rotten part benihd rear wheel where watter gets in. Usual weak spots on e30.