Jim, thanks for the advise. But just to clarify, are you saying that the rubber seal being unattached for about 4 inches would not be causing the leak? That the drainage system in the car should be able to handle it (if it werent' clogged)?

I used a watering can with a narrow spout so that I could control the direction of water. When I hit one area it poured in through the ceiling. Upon inspection, I could see that the rubber seal wasn't attached in that area. But, this experiment is different than what happens in 'real life'. The water does not come through the ceiling, and obviously it rains all over :p .

Anyway, thanks for the tip! I'm off to look for the drains!

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Natalie