Insert a small crowbar into the top section of the trim around the door jamb. Hammer gently to ensure it fits between the wall and the wood. Pry the trim off carefully. Repeat this process with the two side pieces on either side of the door.
Route your wire so it follows the path between the framing and the door jamb, starting from the ground, up the side, across the top and down the other side. Hold in place with wire tacks at a rate of every foot.
Reattach the door jamb framing, nailing it back in place, avoiding the sections where the wire runs.