that is behind the glass on the door pillar. I assume the window does not work from the drivers switch or the passenger switch. Do you hear any noise from the door when the switch is pushed? You can sometimes if your very careful remove the door panel enough to get at the screws and bracket which are under the pillar cover without removing the pillar cover. I dont like doing it this way but if you're in a pinch. Others may chime in with what they've done.
" I told my son, you have to catch the football other wise this just looks like child abuse." - My brother