Silverwraith

I came home the other day to find my Audi in the driveway with the 4-way flashers on but the dash button was not flashing. The remote would not unlock the doors so I used the key and the 4-ways turned off. However the windows, door locks, trunk release and soft top do not operate at all. Engine runs fine and no error messages on the panel. I thought someone had perhap attempted a break in, but no sign of that. Can someone tell me what these items have in common? Any ideas?
Thanks