I'm a fire fighter that uses my personal vehicle to respond to emergencies. I installed a Whelen UHF 2150 headlight flasher and wired it exactly as instructed for Neg (-) swithced headlights. The headlights work just as they did in stock form, both hi and low beams work and function properly with the flasher installed. The headlight flasher will only flash the hi beams when the low beams are on. Is there any trick to wire the flasher so that the hi beams will flash without having to turn on my headlights?