No power to door windows

My son has a 2004-F150 with a extended cab that has no power to the door windows either from the driver console or the individual door controls. The fuse is good. The rear cab window operates fine. We only have a Haynes manual at this time and it shows that all windows operate on the same circuit. So it might be something after the rear cab window connection. We checked the wiring in the door itself to the body and its ok. If anyone has a better schematic that shows the physical branch off or has faught with this problem, please pass along any info....Thanks