I don't know. That's why I am asking. I have siliconed everything from the front windshield all the way back to the rear glass and the upper rear brake light.
Bulletins suggested that the robot (at manufacturing) didn't properly bead silicone at the seam where the top meets the side at the back, so I pulled headliner and lo and behold, NO SILICONE! So I filled that area in.
Another Service Bulletin says to pull the rubber from the cockpit side of the door-to-cockpit barrier and put silicone in each of the plastic mounting holes. did that.
My take is it is leaking somewhere and NOBODY knows where. I have pulled back carpet while installing amplifiers and subwoofers, and the carpet and foam underneath are saturated.
almost a 10 year old truck, so pretty much a moot point, but I would like to keep it dry and drivable for another 10, if possible.