You can retrofit your existing halogen housings to be projectors as a previous poster mentioned. I plan to retrofit an extra pair of headlamps I have, and when I do it I will be going through a company called The Retrofit Source (TRS).
www.theretrofitsource.com
This is the kit that was recommended to me by a sales associate
http://www.theretrofitsource.com/pro...roducts_id=141
Here is an example of B7 A4 halogen headlamps that have been retrofitted using components from TRS:
http://www.lightwerkz.net/news/2012/...on-conversion/
They look REALLY GOOD I think, And VERY OEM.
If you decide to do a retrofit make sure you read all the information on TRS.com and probably some other places as well. There are some good youtube videos out there that show people retrofitting headlights if you can find them, it's generally a similar procedure for most cars, however some people I've seen do it really unconventionally. Make sure you know what you are doing before you start. Retrofitting involves cutting and modifying the existing halogen housing, it is possible to ruin a pair of headlamps.
Also, as far as having the fog lights on independent of the main headlights, you actually have to do some wire splicing and stuff like that
http://www.audizine.com/forum/showth...t-with-Fog-Mod
Goodluck in your endeavors!
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