A:Answer I had the same question regarding the sound bar cable slack. Excess TV power cable can be coiled and zip-tied behind the TV or just looped over your TV mount. I called Legrand support, and they directed me to the installation instructions available by searching WMC801 at Legrand.us. The conclusion is that you need a power supply for your sound bar like the one shown in the illustration from the instructions below - with a rectangular transformer, high voltage input cable, and low voltage output cable. There's nowhere to hide the excess wire if you have the AC power cord like the ones that come with most TVs. You plug the splitter into the top module and plug in the TV and sound bar power to it. You'd need to coil the excess and attach the transformer box to the wall or the TV. Then you run the low voltage cable (round-ended plug) through the top module, behind the wall, to the center rectangular module, pulling just enough through to reach the sound bar. Optical cable runs the same route.
