I recently added a power port with dual USB charging ports to my 2014 Unity MB on the wall behind the my wife's leisure lounge chair. She likes to sit in her chair and work on her phone and tablet, with the power charging cords stretched across the isle to the opposite wall were the entertainment center is located. I was able to connect the 12 V wiring for the new power port into the power switch for reclining the lounge chair. I purchased the power port at Walmart for about $9 and some 18 Gauge wire.