I am installing a new range hood, and know little about wiring. There is an accessible 12/3 wire that I would like to use for the power source. The black wire on the 12/3 is controlled by a wall switch and runs 4 pot lights. The red wire is always hot, and is connected to a 12/2 that runs to another wall switch that controls two more pot lights. Can I use the red wire for the range hood power, and if so, how? Many thanks.