In answer to several posts, the roof leaks are happening along the lateral seams just behind the driver/passenger seats. This is a silicone-based seal that is also (I believe) welded underneath. What happens is: the silicone cracks minutely allowing water to penetrate and it just gets worse from there. The seam begins to rust from the inside out and pretty soon a torrent of water is running back and forth above the headliner looking for exits...usually along the roll bar cover..turn left, the passenger gets a bath..right it's on you!....

Oh, and I forgot...there is also a leak coming from under the dash just above and in front of my right knee..it nicely wets down my foot and ankle when it rains...

Richard Miller
"Wasting away in Margueritaville"