I've darn near given up the fight to find the leak on my '85 wagon. Have you ever seen cars that leak like these freakin things!!!!!
Somehow, mine leaks on the drivers side of the sunroof, runs down from about the middle of the sunroof. It runs along the underside of the headliner [top side against car roof that is], runs down to the A-pillar, and drips down that onto my parking brake lever and hood pull handle. I believe it also makes it's way down the B-pillar, gets that carpet wet, and just creates a very large pond under the driver's seat. Also the rear carpet on the tranny hump is soaked on the driver's side.
Sunroof drains appear to drain. The front connections from sunroof to drain hoses is fine, and does not drip at all. I have sat in the car with the front trim cover removed and headliner peeled back a little, and water is coming middle/or back to front. What is it with these freakin cars.
I got weed eater line to feed out the front tubes easily. I had to try and shove it up the rear drain from the back{

} as you can't really get to the rear drain opening, only the exit. My weed eater line was not stiff enough to make it up through the channel, but water poured into the sunroof area drains back to the rear exit.
I'm at a loss also......
I'm sooo happy
China has no sunroof!! She might end up being a keeper!