what do you mean about cycling the wiper?
and i can still roll down my back window with the key but the rear wiper doesn't work or any of the speakers in the back should i be looking for a short and if so where at?
What I mean is to tun the wiper on and then turn it off. That way you are sure that it has gone back to its parked position. If that wiper is not fully parked the window will not go down as that the system thinks the window wiper is in motion and won't let the window go down. I would start by trying to figure out what is wrong with the wiper first.