YouTube videos were a great starting place to gather the basic get started how to but...if you have HID you have to remove entire headlight assembly. The bulb is actually screwed into the housing with 2 Phillips screws. It wasn’t super hard just some gentle wiggling. Also you can access the fog lamps easily with the headlight removed. There is enough wire in the connectors to get to the bulb but only another 5 seconds to remove connectors and get full access. Hope this helps anyone with an SXL w/HID headlights.