Chavez26061

I have a leak coming from the headliner down to the seatbelt and floor of the second row passenger side. I lowered the headliner a bit when it was raining to see if I could locate the leak and it seems like it was coming from the sunroof. The only part that gets wet is on the pillar behind the rear passenger door the headliner part and seatbelt and floor in that area. Would I need to remove the entire headliner to clean the drains? Or is there maybe a different reason it’s leaking into the cab?