Robbo,
is not much to do in open Audya,but befor open your instrument,maby is good to look my pictures.
Procedur to opening Audya is eassy.On the bottom of cover is for screws,who you can easy remove with cros screwdriver,but much dificult is two screws under kays on the front of instrument.
Good lack

Link:http://www.box.net/shared/uftac8jns3