Power windows on 1999 Buick Regal

Power windows are not working in the back.I replaced the main switch on the drivers door,with no results.

Asked by for the 1999 Buick Regal
Check for power at the yellow wire at the master switch with the ignition key on, if it doesn't have power check the 30Amp circuit beaker in the fuse block or check for broken wires.
we have power to the window but the there is a wire hanging is there needed clips or etc