Headlights won’t work. Replaced the bulbs and battery for the quad. Took the headlight and used some wire and connected it to the battery directly and it turns on. Power to where the headlight wires connect to the wiring harness. Know switch works because I hooked it up to my voltage meter and it shuts down the voltage to the wiring harness when it is turned off. I also replaced the regulator. Yes I am aware that the quad must be running. Any ideas? Nobody I have talked to has one. If you do being specific would help as I don’t have a lot of knowledge in the subject matter. I appreciate it in advance.