sSo here is a picture of what I see, with the stain... It does line up with the roof rack.. we had quite a bit of rain today, some heavy pours, and yesterday, on and off, and so far the headliner seems dry.... I'm thinking if water was still leaking it would wet it... or drain off? I placed paper towels in the c pillars plastic trim pieces... should I bend gonna try not to damage the headliner and place towels in there?

Thanks a lot.. even for the initial reply!