Looking to retro fit my msp headlights. http://m.ebay.com/itm?itemId=291122184370 if I buy these, is this everything I need for it? Or what else do I have to buy? I also found these... http://www.car-parts-accessory.com/...Lens+Retro+Fit+Kit+with+CCFL+Halo+Rings/7688/ ..... Not exactly sure what to get. Someone help!