The skirting boards in my living room will be put in next week, so it's a good opportunity to put some wires behind them to run round the room for rear speakers for 5.1 audio. They will be just thinnish wire, not hifi. Is there a simple, relatively unobtrusive kind of socket box I can screw on to the wall at each end which would be neater than just leaving the wires dangling? Rear speakers don't really warrant cutting out the wall for hifi style banana plug boxes.