You know those 2 round lights all the way at the bottom in front.

 

There are two buttons above your radio, to the left of the hazzard flassher lights. The left one will turn on just the fogs when you have the low beams on. The other on will turn on the front fogs and the rear fog light, yes one light in the rear.

 

ok I just wanted to know because I see cars drving around with the lower ones on all the time and thought it looked cool

 

try this:here

 

Sorry, link does not work, i'll find it for you.

http://ctny.audiworld.com/mark/a4/fogs/fogs.html

 

Or just buy a euro model a4 .