I recently moved to a new house that seems to have a whole-house audio system installed. In fact, it has all of it except for whatever I need to actually, you know, play music throughout the house.

I’ve attached some pictures of it. This was the first place I thought I would look, to see if I could get an idea of what I’m looking at, and if you have any recommendations, or recommendations for the type of expert I might want to seek out to help me get whatever I need hooked in so we can start using this in our home.

I’m looking for help identifying things as well as a direction to take it.

What is this?

Power supply? Says not to plug in until all wires are connected.

What is this thing that is hooked to the door? Why?

Speaker

Back of that speaker