does anyone know how to do this for a 2001 A6? is it even possible? I've seen articles for the A4 but the same controller (address 09) does not exist for my A6.

FYI - Mine is a 2001 A6 as well. See this link for info about the rewire to enable to fogs...<ul><li><a href="http://forums.audiworld.com/a6/msgs/375675.phtml">Fog rewire</a></li></ul>

Anyone tried this on a '04 A4 as you can't VAG it like you could on my '02 A4 unfortunately...

http://forums.audiworld.com/a4gen2/msgs/254164.phtml