Hi, my wife and I are purchasing a house. It has five built-in Bose ceiling speakers in the family room and two outdoor Bose speakers. Attached are pictures of Bose equipment that is in a storage closet. It looks like the speaker wires all connect here. One of the pictures is of an outlet that is in the family room. Not sure what that connector is. Also, there is a picture of a group of wires that goes with the wall mounted TV. One connector (besides the HDMI) looks like it would attach to the back of a TV for speakers, but I don't know how it is wired. Any help, please. Am I missing a component to drive/select the speakers from within the family room? I assume I will need a receiver as well in the family room. What am I missing?