Trying to sort out why my back-up lights are not working. Does the back-up light system shown in the attached photos look like a factory accessory? All these years I thought the on/off knob said "Utility Back Up," but it actually says "Unity Back Up." Does anyone know which of the following have to be on for the back-up lights to work: ignition switch, the headlights, engine running? Tough to track down the problem if I don't know how to turn them on. Thanks in advance.
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