Has anyone figired out where the water is coming from a situation like this

https://youtu.be/cjhnrclWDTk

Dont think it is sunroof nor the holes under tje windshield as i cheked and water i coming under the car when i pour water in to them..also tje AC tube thingy seems to be un blocked.
volvo V50 2005

 

My V50 had the same problem. I found that the sunroof drains were plugged in the A pillar. I used a wire then compressed air to unplug them. from the pillar just above the dash.
I also blew air (20 lb) up the hoses and got more stuff out.
I then used the same wire to get into the drain passages under the wipers from above. It was a bunch of playing around but all the leaking has stopped. (Took 2 weeks for the foam interior to dry out!
Good luck