93 Bonneville sun roof not working

[yakko]

My 93 Bonneville sun roof is not working. It sounds as if the motor tries to do something when the car starts up, but the window does not move.

Anyone have any experience in nonworking sun roofs? I've heard "look for wax build up" and I'll check that, but I don't think that's it.

Anyone know where the fuse is for this?

Does anyone have a wiring schematic for the sun roof? Seems Haynes and other books don't include extras such as this. Huh.

Do the controls run through the ignition switch? If they don't, do you know where they run through?

Thanks for any and all help.