I have a 1990 Boxy Custom Cruiser with water wicking through the carpet at the back edge of the passenger side second seat footwell. It had sat outside during a rainstorm at the shop last November for a week before we covered it. When it came home both the front and rear passenger side footwells were saturated. At first, I thought it was because a shop put our car cover on the back seat wet but strangely the seat itself wasn't wet. After using heaters, a dehumidifier, and a carpet cleaner I was able to dry it up completely over the course of a week. The last stubborn spot was the same exact spot where it has returned. It's been driven and parked in the rain a few times over the last two weeks but the front floors and driver's side rear floor are still bone dry right now. Only that one spot is wet! It normally lives under a carport so it doesn't normally sit in the rain. The way I discovered it this time was by lifting the floormat to clean and I noticed the back edge was wet. I've even been under the car probing for leaks with a light but the floor pans look mint and super clean. It's definitely water, no sweet smell or loss of coolant. Just smells like dirty carpet water when you press with a paper towel. Anybody else run into a leak in this spot? Any ideas would really help my search.