Eric5412

I'm having a problem with water somehow leaking under the carpet on the driver's side rear. About 2 week ago I was running some wires for my stereo, and noticed that the foam underside of the carpet was soaking wet. I checked door and window seals, trunk seals, and I even sealed the rubber plugs from the outside with sealer because they felt a little loose. It is only getting wet from the bottom of the carpet, the top is completely dry and no other place in the car is wet(that i can see). I have no idea how long it's been getting wet.I only noticed because I had the carpet out . There's a slight moldy/mildew smell already. I have dried it out and after heavy rain it's wet again. It’s not from the AC,haven't used it since summer and it's not antifreeze.I recently had the moonroof seals replaced by Lexus, which was dripping into the car. Could that somehow be related to my problem now?I would like to fix this myself,if I can.I had such a bad experience with the dealer,I would hate to have to return there,even if it's their fault.I have read other posts about the moonroof drains, Where exactly are they? I only could find 2 in the front corners, I heard that there are 4. Where do they drain to? If they are clogged would that cause water to get under the carpet? I thought the seal around the moonroof glass stops water from getting in, why are there drains?