I verified the 3rd brake light is dry behind it, the bulkhead connector to the door is dry, the rear floor is dry. The only evidence is drivers pad and carpet are soaked and water is in the wiring trough near the pinch weld of the door. The nuts holding it down are rusty, so water has been there. The wiper cowl drains are clean. I bought this truck used, so i have no idea on glass. I pulled the bed liner out to clean out the bark under it, he must've hauled wood, so back glass replacement is possible previous owner. Cab vent? Can't see it, behind trim. I have the door sill trim, the kick panel, and the carpet pulled back. No pics at this time. Raining hard right now.