How do you fix a slight leak coming from the sunroof on a 94 z24 cavalier do they have drain plugs?

check to make sure it is the sunroof for one, 2nd after your sure, replace the rubber seal, 40 bucks i think, the rubber gets old and the window wont set down onto it properly anymore, also if you have gallon of water in the back seat but roof isn't wet, its not the sunroof, its the front window leaking down the frame rails then into the back seat, my sunroof leaks barely, but made me think the gallons in back seat was it, it was not the source of the heavy leaks, anyhow, hope it helps ya...