I didn't hook up red anyway on mine. They still dim as they are supposed to when the headlights come on and function as normal. I wired it by breaking apart the stock H8 bulbs. Get some pliers, cover the blub in paper towel, and crush it. Remove all the glass and the metal circle piece at the base and there will be two long metal pieces exposed, I soldered the brown and white connections there and then the kit is plug-and-play.
You will have to test which side goes on the left or right for brown and white, so make sure you don't screw that up!