i just bought a house and would like to illuminate the living room a little more as there are absolutely no light fixtures. The ceiling contains two caps/covers where there are wires exposed underneath. When I remove the caps there are three "groups" of wires. When I say there are "groups" I mean that the hot or live wire has three seperate wires twisted together to form this one wire. The thought to be ground and negative wires have two wires twisted together to form the one wire. From what I can tell there are no switches that control the electricity to these bunches of wires. So they are always live. How would I go by installing a light but making it so that it's not always on?