You home run from the volume control to the source of the background music. Wire from the volume control to the speaker or speakers if it happens to be a stereo volume control or two channel as some call it.

After home running you need something like this:

https://www.amazon.com/Niles-VCSHUB...p;ie=UTF8&qid=1302816939&sr=1-37

a speaker wiring distribution hub.

It works really well. The input goes to the music source/amp (can be 8 ohm or 70 volt) and the output to the volume controls.

If customer doesn't want to spend a couple hundred bucks on this you will just end up with a mess of wire nuts somewhere...you can't punch down stranded speaker wire on a 66 block, it just will not work.

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