I noticed water in the spare tire area, after pulling everything out I thought it was the plugs on the bottom. When I went to replace the plugs I still had everything out from before. This time I could see more water, but this time up the back side under the trunk latch. I didn't even have to pull the seal back to see the rust. Too late for me, because almost both pieces of metal were rusted thru above the latch. Water that came down from above inside the seal leaked through where it was rusted. Definitely think its more of a common problem than we know.