first of all |can't believe they make this car with xenon as an option. I put xenon on my car no problem, however it would not work through the low beams, | had to connect the transformer on the fog lights and vice versa, kind of cool actually because when I turn on my regular headlights I get the fog lights on and the parking lights on at the same time, like audi do it. Then if i want the xenon I have to turn on my fog light button. works out well, otherwise the xenon on low beam hook up was screwy and did not work well at all, flickering etc......thankfully worked by going through fog lights, quality wise is excellent on ebay depending who you buy from, don't remember the name i bought from, however you have to drill a hole in the light covering and put the ballast somewhere and seal the hole properly and also had to splice the clip that holds the bulb in place to get the wire through,(put a dab of silicone here to keep it in place) but take your time and good to go.