My 1989 Spider Quad came with a hardtop which is in excellent condition. The problem is when the hardtop is in place, the road noise is horrible. I have attached a picture of the driver's inside edge of the hardtop. The picture is labeled #1 and #2. To me, the channel labeled #1 may be missing a rubber gasket. My questions are where does the window slide into the hardtop and should there be a rubber seal glued into the empty channel labeled #1. Any help would be appreciated.