When i got my car 3 years ago the Front Passenger and Rear Driver windows never worked. The rear driver window regulator was disconnected so i plugged it back up but it made no difference. Last year the other two windows just stopped working (no warning). I checked the fuses under the dash and replaced them all. They still don't work. So all door panels are off and all plugs are connected. bought new master switch and door switches. any help???