My girlfriend just bought a 2005 6 i sedan. I noticed the headlights have two projectors per headlight. She wants HIDs and I don't know how to diagnose the problem. Should she get two HID bulbs per headlight? Please help me!!

 

One is going to be the lowbeam & the other is a foglight if the car is equipped with it.

 

Is the inside one the fog light? And is there anyway to turn the fog lights off or would that require some wiring work?