A:AnswerI had to wrap the cable around the mounting bracket for the soundbar and back to the power connection. I then used a cable zip tie to do the rest.
A:AnswerYou can't really remove the wires to the sockets (at least not at first glance). I guess you could just leave the second socket dangle in the wall. Or you could just run the wire to the upper socket and never use it. I think I see why you want this kit - you want to run AV cables all the way to the top and down to the speaker.