If you want it too look really good, follow above instructions minus the etching out the corner part, and cut a hole for an old work low voltage box 1-2" over from the power box, and put a keystone connector in there.
If you want it too look really good, follow above instructions minus the etching out the corner part, and cut a hole for an old work low voltage box 1-2" over from the power box, and put a keystone connector in there.