Right, so it varies speed slightly, and goes away after about 30 seconds, regardless of vehicle speed/direction or lack thereof. I recorded it, and will post a link up here once I get the mp3 hosted somewhere.
Bizzare. It didnt do it this morning when I drove to work. It was only 25 degrees outside, so perhaps the cold air has something to do with it. I'll see how it goes this afternoon on my way home.
As in, poking the button that directs air to feets, faces, or in between? That made no difference. Its weird. But on the way home from work it did it again.
It still does it, but its less predictable as to when it does. Its definitely related to the airconditioner though, because most of the time, (not all the time however), I can stop the clicking by putting the aircon on. This is different to when it started. Also, there have been the occasional times when it has come on randomly when driving. Im hoping to be able to pull the dashboard and climate control unit out some time soon and see if theres anything broken inside it.