Hello all. On the driver side, when I want the rear window down and the front one is already down, the front one rolls up before the rear one goes down and vise versa, when I press for the front window to go up the rear window goes all the way down then the front window goes up. I've disconnected the power buttons and cleaned the connectors just not sure what else to do....Oh by the way I'm in Germany...yes it rains here very often. Help!