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Hi George, my name is Marty. Click here for the instructions to remove and install the panel. Step 6 is critical as the sliders receive the panel at the back. If you have the lining installed correctly what I have seen in the past is that the material used to cover the panel is too thick and will bind up the roof when opening and closing.
Let me know if you need anything else.
The sunroof panel or headliner is one piece and slides back and forth as one piece with the roof. When you lift the back of the roof the rear section of the headliner panel lifts up. The instructions I sent were for the headliner panel.