I've seen threads about 01-06 Celsior fog light housings having a second bulb in that blank space on the outside. Some suggest that they're for cornering lights. Would it be possible to drop some JDM fog lights into a US model and get this functionality? I remember seeing an extra unused connector for each fog light.

 

I just added a bulb to the stock us housing (drilled a hole in the back) and wired it to the turn signal, works fine

 

Care to show us? I would be interested in this since I've grown used to this on my A8 and 460

 

No pics but I used these types of holders, just drilled out a hole a little smaller so it holds well, I might have siliconed too but don't remember. I used led bulbs so they don't go out