I am not an expert, this is just something that I found from the Google:
http://linux.die.net/man/1/dbus-monitor

So it seems that you just need to open xterm and type dbus-monitor (and you can also give some more specific attributes to this command). Works for me (although I don't know how to exit the dbus-monitor), I just don't understand most of the output... I also don't know if it would be better to run this as root.

Unfortunately I could not find my AD-54 for testing.