Turn your steering wheel till you see 2 screws holding the cover. Remove the screws and pop up the cover. You don't need to remove plastic liners under the front fenders. Fog lights location accessible from the top of the vehicle. Remove the battery and unscrew window washer bottle neck to gain access to the fog light area. Also your car should be already prewired for fogs. All you need is an extra button and splice it in the wires 3&4 on D13 connector. I did it couple days ago and used 3dr Yaris lights from eBay.
