I have two speakers and I want to have an in wall volume control because the receiver is under the stairs. I am wiring the speakers right now but do not have the volume control. I am guessing I will have the 2 sets of speaker wires come into the volume control box and 2 sets coming out. Please someone correct me if I am wrong, I am wiring today and tomorrow. This is the box I should use correct http://www.outdoorspeakerdepot.com/vmimmavocow.html