saltyreels

Hi all! I have 2000 gmc sierra 1500 slt drivers door lock switch is not working, the key fob will unlock the passenger but not lock either side.Drivers window not working up or down, I can open close passenger window from either side, the cluster panel flashes but it has done that for a while. The other things just started a couple nights ago when I went to take it out down the road and it wouldn't start. the pos / neg connections were loose some but did get them re tightened. As far as the window door lock things does anyone have any ideas? There is clicking in the side fuse box when I use the fob for the lock function. I replaced a few relays.that tested bad but no change.