You can also cut a small hole in either side of the box and feed the cables through this hole to the wall outlet to conceal them. For getting hdmi and audio cables from point a to point b behind the drywall this is the cleanest option.
Sanus Simplicity In Wall Power And Cable Management Kit
How to hide hdmi cables in wall. Use your knuckles to find a hollow route down the wall so you dont have a patch of adhesive in the way when routing cables. The type of media boxes im using are the only type i could find locally and they were only. Gather the cables together and close the box to hide them. So i created this simple step by step guide to show you how to install a low voltage cl3 certified cable into a wall the right way. Also bare in mind that the cavity thickness can vary mine was only just big enough for a hdmi lead. So while you can do whatever you want in the name of becoming a responsible adult wed recommend against stringing your current power cables through the wall.
Place a decorative box on a shelf just under the cables. Tools and supplies in the pics. I used a rather more traditional metal coat hanger to feed the cables through. In my recent article about installing a low budget touch panel i mentioned that the cables can be run through the wall to hide them from view. Lay the cables over the base and snap the cover on to conceal. Hide your cables in a box.
You might also want a flexible but rigid fish tape to help you push cables through the wall though if the wall youre installing the kit in lacks insulation or if you have a comparable rigid flexible rod laying around then you might be able to skip this. This instructable involves among other things. After cutting perfect holes with the included saw attachment the outer bracket will lock on to your drywall for a secure fit. Either way expect to spend a little extra money if you dont already have the tools. Hiding power cable and hdmi cable for wall mounted tv step 1.