I am buying my sister Interior Underdash lights for her car, but it says it requires a quot;hard wire installationbecause it does not come with an on and off switch. What exactly does that mean? Will the lights turn on and off according to whether the car is on or off? Also, what is a hard wire installation?
Hard wire means it's not just plugged in. eg. using the cigarette lighter but instead is permanently wired in. All you need to do is wire the lights ground wire to any ground wire under the dash eg. ignition ground or radio ground ( wire will be black ) or directly to a screw that goes into any metal part of the chassis and wire the lights positive wire to either the accessory wire from your ignition (lights come on when car is on) or a constant power wire eg. radio power wire and wire in a toggle switch so you can turn the lights on or off at will.
