2005 grand prix gtp
So yesterday during a heavy rain storm i noticed that my headliner was wet near the driver side door, i thought maybe i did not close to the door all the way and soaked up what i could and left it. today its been raining off and on and when i went in my car its way worse, the headliner is wet from the driver side door to almost the middle of the car near the dome light and as far back at the rear driver side door. I checked the weather stripping near the driver side door and its all sealed and not even wet. My only other guess is the sun roof, is this a common problem and an easy fix for this?