Picked up a pair of USB plugs to replace two of the triple 12 volt sockets up front. Since these are always hot, I found these with power switch on Amazon:
Limited-time deal: iMESTOU Automobile USB Charger with Switch 36W Car Dual USB Quick Charge Adapter 2.1A &2.1A Fully Sealed Waterproof with Voltmeter for 12V/24V Motorcycle ATV Boat Marine RV etc
Pulled the panel holding all 3 sockets (PS the "clips" that keep this in place break off easily so be careful or you'll need to find a new way to put the panel back). Removed the doors that cover the lower two and the little black bumpers.
The sockets have sleeves on the back that unscrew and the pop right out. The holes were too small so I used a small hole saw on my drill press to ream them out to about 1 3/16".
Butt-connectors from the stock wires to the new ones, and heat shrink over top for good measure. Insert the new sockets (small ring screws on to hold them tight) and connected the wires. Boom! Working USB. Power switches work as advertised, seems fine sitting out front. We'll have to see how they hold up.
Oh, and if you happen to break off most or all of the clips that hold the panel back on, I suggest cutting them all the way off and strategically applying double sided foam tape to put it back in place. Hypothetically speaking of course.