Having 12V and 110V power under the dinette was really inaccessible. I've seen this setup in a number of motorhomes, but never liked the location.
We decided to move both sources, and add a USB power port while we were at it.
Original location - with new blank-out covers:
I had a new 12V power port with a cover, so I mounted it along with the USB power port in a new blank cover:
Now both are very accessible, complete with USB.
2016 Forest River Sunseeker 2250SLEC Chevrolet 6.0L