I added rear fogs to mine when I was refurbishing the interior, I had to order a used E36 switch from Europe on Ebay, BMW North America would not allow the dealer to order one for me ?? I added the rear fogs for additional visibility during inclement weather, I was mostly concerned with the heavy rain storms I might experience while in Florida. In the US with all the pick-ups and SUV's being driven by distracted drivers, additional visibility can only be a good thing, especially during inclement weather when they feel evan more invincible! I noticed during the trip down to Florida that when I turned the rear fogs on during the rain other vehicles maintained additional distance from me, I call that a success! I was not aware that the factory wired them in series with the front fogs, so I wired mine to operate seperately and I added a small yellow LED to the switch cover to the right of the steering wheel to indicate when they are on.
