Golf IV / Jetta IV :: Leakage From Sunroof Drain Into Front Passenger Footwell

Fiancee's 04.5 GLI is leaking from the sunroof drain into the front passenger footwell.

The Tubes are clear, but the front passenger drain is leaking from the upper portion of the tube. I pour water down the drain and 90-95% comes out the door nipple. The other 5-10% comes down the Pillar, and then out the bottom of the glove box.

I know its coming out of the top of the drain, not the nipple at the door because I can visually see water drops inside of the pillar.

What if I make a small plug to close off the 1 corner of the drain? I understand the correct solution is to pull the headliner and reconnect it.

BUT with the holidays and chaos of this week, would a temporary solution be to close off the 1 hole? I'd do a small delrin or aluminum plug with an oring on a lathe real quic so its a water proof seal

OR if I plug it, will the water level rise too fast inside the sunroof and pour into the car? I don't know.I think the plug would be a safe solution.....