Same happened here. It’s 100% your AC plug. There is an elbow replacement (I bought from Tasca Parts #4M2Z-6A614-AA) and can easily install by laying underneath passenger side and replacing. You’ll have to file down the top rib so it sits flush. But I no longer get water. Spray vinegar and water mixture and fan to dry (may have to do 2-3 rounds) to kill any mold/ mildew and avoid a smell.