Kinda have two discussions of the same topic goin on now, but I'm gettin good info so I will just go with it.
Attached pics again of everything that I have found in the house thus far.
First pic, Volume dial, light switch, and B&O box above with mute and start. Second pic, typical speaker that is mounted in several rooms. As I said there are probably 12-16 speakers throughout the house. When I removed the volume control from the wall it had a small box attached to the back of it with several wires going in and out. I am truly an amateur when it comes to these things. From what I have gathered it sounds like there is a good chance all I need to do is hook this system up to a Beocenter 9500 and it should work, and a small chance I may be missing something. Is this a decent assumption?