I too am having water in my small cargo area in back. It's not wet in any other area just inside the cargo. Wondering if windshield fluid leaks when I use it for back window.

Hello there, certainly could be, it has happened to me. But, would be more water where it latches than the cargo area. The little hose that goes to the rear of the nozzle is too short! It can easily slip off and slop water or windshield wiper fluid all over. I'd remove the thick plastic skin that goes over the hatch, if I recall, has 1 torx screw where the handle is on the inside, then the rest just pops off. Comes off pretty easy. Trace the tubing from the nozzle back while having someone run the water. If it is the tubing to the nozzle, I just spliced in a longer piece so it wouldn't pop off anymore.