I've had a lot of chirping when the weather gets cold and eventually stumbled upon this thread for the C5 A6: http://www.audizine.com/forum/showth...g-and-chirping

I removed my glove box and looked around for a while; couldn't find anything that resembled it. Any C6 owners know where to find it? Sounds like all I need to do is find the access hole and spray some lube in for starts.