Isolated Ground Wiring question......?

I want to run a dedicated line for audio, I want this line to be an Isolated Ground Line, so I do Not pick up unwanted noise.

I was under the impression that when using an Orange receptical for Iso Ground:

1. The black wire goes from the breaker to the gold screw on the receptical.
2. The white wire goes from the grounding bar in the breaker box to the silver screw on the receptical.
3. The insulated red wire with (Green identification markings) goes from the grounding bar in the breaker box to the Green screw on the receptical.

My Question is....What do You do with the Bare Copper Wire?

Is it used at all?
I suspect Not because it would then be connected to the Building Ground like all the rest of the house wiring, and therefore defeat the purpose of the Isolated Ground.

Please Help, I am getting conflicting advice.

Billy V