I had the same problem. It drove me nuts later found out that it was comming in from under the cowling i ran a bead of black rtv silicon along the seam between the window and the cowl. Seems to be working hasnt been wet and living in fl we get those wonderful afternoon showers but now i have to change the carpet ......any suggestions on the color and where to go to get it ? It's the midnight blue interior with the silver frost exterior thanks