How do you remove the headliner on a 2000 Mountaineer that would allow you access to clean out the drain tubes that are around the sun roof?

while driving during the rash of rain that we had in eastern pa. iwas getting soaked,i though that my sunroof tubes were clogged up,so i openned my sunroof completely and took a peek at the tubes with a flashlight and used a small can of compressed air used for computers to make sure it was clear then pour a little water into the tube with no luck, so i took the top door trim off,all you have to do is pry off with your bare hands,but make sure you pry straight out,maybe you can use your fingers at the top and a screw driver at the bottom the first clip you shoud snap out is the one near the junction between the front door moulding and the rear door but don't forget to always pull straight out then all you have to do is go around the moulding as long as you have a straight pull you won't brake the snaps or clips, after you take that mouldinf off take off four screws holding your sun visor three on the left side and one in the right side for the drivers side and the oppossite for the passenger side once you do that get a flaslight and as you pry the front corner of your sunroof down take a peek and you will see that that the rubber connector to the tube has separated from either the tube or the hose,in that case all i did was stick my hand in there and pull the connector off ,clean it out and put a little silicone to make sure it does not come off anymore til, i want to get to it again, just pry the headliner down gently,and you will have just enough room to work on it,remember all you want to do is to make sure you don't have any leaks and do not play around too mu7ch because the tube might disappear from view and into the body frame and you will have a hard time to fish it out,like i just did. good luck with your project.