I am replacing a range hood with a microwave. The hood was hardwired in. I ran a new 20A circuit from the panel for the microwave. The existing hood wiring is tied into the kitchen ceiling light. There were 5 wires tied together in this box. I found and disconnected the hot wire, but don't know how to ID the neutral wire running to the hood. Can I leave it connected and just cap the hood wiring off since the hot wire isn't connected?