I think this might work:
https://mediablackout.net/products/u...t=232116879385
You could consult with them to see how to tap into your rear lighter, and what specs they would need to make it for you. You can then get a small USB extension cable, plug it into there, and put a tiny hole in your center armrest to feed it through and mount it. Everything else can be tucked inside and out of sight.
Personally, I'd just plug in a USB hub into the rear cigarette lighter and run a USB extension cable up the passenger side of the armrest. What you're looking to do just seems like a way over-engineered solution to a simple problem. But if it's useful enough to you, then who am I to judge?
