Just took delivery of my new 500 Sport on Tuesday and already changed headlights to HID and also changed factory fog-lights to 8000K halogens. Since I didn't see a thread here on how to do, thought I would give a quick guide which is easy and takes approx 5 to 10 minutes. To access the fog-lights you just need to remove the three silver Phillips screws just inside the front wheel well with a Phillips screwdriver. Just turn your wheels to gain easier access. Once removed you can pull the plastic wheel well towards you to gain access to the fog-light housing. Just release the wiring clip and turn the bulb a quarter turn to the left to release and pull out. You might need a flashlight to see in case you're in a garage or area with minimal light. To install the new bulb, insert in the housing, turn a quarter turn to the right, snap the wiring clip back on and fasten the three silver screws back on and you're done! No need to remove the bumper or bottom cover underneath. The new upgraded lights give a nice balance to those with the HID headlights.