The roof leaks in my 2000 Eurovan. Water drips in near the passenger side sun visor. I know there are issues with the design of the sun roof and its drainage system (i.e., no drainage tray inside, etc.). We've sealed up the sunroof window (the part that moves to open the sunroof) and the leak persists. Does anyone have experience with this type of thing and who can recommend where these leaks typically are?