Gene; I want to do this, also. Are Will's leds plug and play, or is there rewiring involved? looking at the owner's manual to replace fog bulbs seems pretty easy based on the illustration; how difficult to change them out and any reason to think it impacts warranty?Just added the LED fog light bulbs, from Karbon Koncepts, to my Cadenza. What a difference, There super white and look as good as the new LED fog lights on the new Limited. Easy to install and 1/8 the cost of replacing the whole fog light.