Re: WOW ... stop the rust while you can ...
There are rubber / plastic caps that push into the underside of your doors, you can remove them and get a glimpse in there with a flashlight. But remember the insides of car doors do get wet, and its normal, but with the drain holes and ventilation the water dries out, and no rust will occur. so don't worry if water is getting in there.
Also after speaking to the dealer, they 1st said there was an upgraded version of the weatherstripping they were going to put on my cars, to stop the water from getting inside, then after I checked the part #'s, its the same exact stripping that's on there now, which won't help my problem. I'll keep you guys posted.