I thought mine was from the LH qtr window as stated by previous owner but when I checked it out myself, I noticed the water sheeting down into the filler area. sure enough that's it. How did you go about sealing that one up so I can get a game plan?My leak was from the gas cap area.
I found it by hosing down different areas of the car.
I still have a small leak from somewhere I can't find. But after sealing that up I get much less water in.