Something I did this weekend was to tighten my moon roof and it quietened my rattle!
I'm sorry I didn't take photos of this but it's really not that bad of a maintenance project.
I've read many postings about the slide rails wearing out and you have to replace those. That looks like it would be a pita to do!! Anyway, I decided to remove the glass so i could get a good look at things from the top and I found loose screws that hold the glass bracket to the lift which was causing my rattle. Tightened the screws and the rattle is gone!
Here's what you do - from memory. Get a blanket, several towels, or something to protect the outside top of the vehicle just behind the moon roof. Hop inside the car and slide back the shade. Be sure the moon roof is in the closed position. Look on both sides of the glass for a cover about 10" long with a screw cover closer to the rear of the car. Flip the screw cover out and remove the screw. Now slide that cover toward the rear of the car and out. This reveals 4 bolts/nuts on each side. Remove all the nuts. NOTE: there will be some shims between the bracket and the frame of the glass. You can get those after you lift the glass but be very aware where and how many are under each edge.
Now, you're about to lift the glass and glass frame out of position and then what to do with it, right? Place if very gently onto the blanket or protective material you put over the top of the roof! Don't forget to look for the shims and put those somewhere in order and exactly how you found them.
From the outside top looking down onto the rails and such, look for some screws that hold the glass bracket to the lifter and rails. There should be about 6 screws on each side. Those screws were my issue. All of them were loose.
I tightened all those screws and then replaced the glass - with the shims as I removed them - tested for leaks - and took a test drive. No more parachutes!! .. ah i mean rattles! That was from Indiana Jones Temple of Doom
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