My Lincoln Ls sunroof is leaking into the door panels. I have been told it is the drainage tubes?

Help! I would like a description or prefer a diagram of where these tubes are located. Do I have to take off the head liner and/or door panel to gain access? Can I use a hanger or like to unclog? Air hose did not work. The water is running out the door panel and collecting in the door cup holder. Thanks!