1995 Millenia. I have a roof window leak which I have isolated to the rear drain on the driver's side. The two front drains are clear along with the rear drain on the passenger side. This was verified by opening the roof window and pouring some water in the canals. The water exited fine from the two front wheel wells and the right rear behind the rear tire. However, the water did not the drain behind the left rear tire but instead drained inside the car at the top wetting the liner attached to the rear column C by the rear window driver's side. Either that rear drain is plugged at the top or the hose has disconnected from the drain tray behind the roof window. Is there a way to get to that area to check the hose connection without removing the roof window and frame assembly ? Removing the roof liner is another possibility but that requires removal of the rear seat and back per the shop manual. Any suggestions would be greatly appreciated.