Roof leaks in our 2003 and 2006 Odyssey it must come in along the roof bars. It keeps the floor completely wet on the drivers side of the 2003. It stains the roof lining and wets the seat belts on both sides. We park the Odysseys uphill at work, it seems to divert precipitation backwards so I think the leak is nearer the front of those rain channels. There is a fix on you tube using a lot of silicone so it is a common problem with them.