Getting a new stove...old stove was hard wired into the junction box. New stove needs the junction box to be about 12 inches below the old one. And fitted with a plug. Can we splice into that wiring in the old box, cover the box, create a new box 12 inches below with a 4-prong plug (the wiring has red, black, white and ground wires).? Otherwise, if we put the plug where the old junction box is, the stove will stick out an extra 2" from the wall - the new plug would be next to a special recessed area at the base of the stove designed for accomodating the plug.