Separate the wires within by bending two of them back and leaving one still standing.
Fishing electrical wire from wall to ceiling.
If there is no cover press the wire against a stud and use it as a guide.
Once your hole is drilled you can shove a glow rod through the hole to start fishing wire attach your wire to the eyelet at the end and pull it back through.
Use the utility knife to slice open the outer insulation jacket on the electrical wire cable about 4 inches long.
Reel and wind the fish tape which will pull the electrical wire along with it as it snakes through the wall and ceiling.
Strip about 6 inches of outer sheathing from one end of the cable then hook the conducting wires and bare copper grounding wire through the loop at the end of the fish tape blade.
Thread wires past insulation.
While handling fiberglass insulation wear gloves eye protection and a mask that covers your mouth and nose.
As their name suggests glow rods glow in the dark.
Pull an additional 2 to 3 feet.
If the wall contains insulation try to fish the wire between the outer paper or plastic cover and the wall.
Learn how with this video.
You ll need a flexible drill bit and some fish tools though.
For more in depth informatino about running fis.
Bend the lone wire through the loop end of the fish tape and twist it so it won t be pulled off.
As long as the joists run perpendicular to the wall in which the switch is you should be able to do it.
Glow rods can also be used to hook wires to pull them out as a wire snake tool.
Grab the wire as it emerges from the hole.
Having cut a hole in the wall you can feed the drill bit up and drill through the top plate of the wall.
Bend the wires over then wrap several loops of electrical tape around the wires and the end of the fish tape.