if ur trying to hook up leds, most leds take up to 12v dc and 1 amp if im not mistaking. so u can rig up the light to the stock wireing for the stock light. u just have too hook up a volt meter and see what kind of power those wires put out. now obvisilly the higer u rev the engine, the more current/volts get pushed through. so u may have to hook up a few resitors/capisitors/and a voltage regulator to reduce that higher voltage the engine produces when its reved. the benifit to hooking them up to the stock wires for the light is that u can turn them on high, low, and off.