Sunroof Drains

[lorenaustin]

Hi All, I need to address what looks to be my rear sunroof drains are clogged. After a good rain shower or even washing my car I'm getting two leaks near the corners of the rear window.
Am I going to have to remove the headliner to access these drain opening or is there a less involved way?
Thanks for any input.

[BYprodriver]

I would start with a powerful vacum 1st.