water dripping in from dash passenger side

Went through the car wash yesterday and while vacuuming saw water dripping from the fan area.
Pulled the filter and it was prety wet. I havent taken anything apart yet, does anyone know what I could check before digging in?

 

Yup. Clean the corner of the pass side cowl. Exterior. Gets gunned up. There’s a thread or two on here about it.

 

Thanks I thought it would be something like that!

 

Here is a link to to some helpful post.
Mine did it once, I had to pull the cowl off and clean the channel.

https://www.tacomaworld.com/threads/water-leak-passenger-side.685061/#post-24163700