Overview of the Process. Install an outlet behind the tv and another down low. Use Romex cable to connect the two. This is a code compliant way to run the wires behind the wall. Feed the component cables through the wall. Plug the lower outlet into a normal plugin to activate the TV’s circuit.Then plug the TV into the new outlet behind it.That’s the basic overview! See diagram below.se Romex cable to connect the two. This is a code compliant way to run the wires behind the wall. Feed the component cables through the wall. Plug the lower outlet into a normal plugin to activate the TV’s circuit. Then plug the TV into the new outlet behind it. That’s the basic overview! See diagram below.