I have a signal outside light in the center of my garage which Id like to take down and replace with two sconces on either side of the garage. I am wondering how to safely and by code (NJ) run new wiring from the old light to the new sconces. My plane is to remove the old fixture and close up the hole, run the old wire into a new junction box and from there split the new wiring to the sconces. Any help would be greatly appreciated