Sure, from the top:
1. A 2 amp breaker (aircraft surplus from a Lear panel a buddy gave me).
2. Radio Shack Rocker Switch.
3. Blue Sea Systems Dual USB Charger.
4. Blue Sea Systems 12v Outlet.
A 15 amp fuse in a Blue Sea Panel feeds the 12v outlet via some 14 gauge, then on to the 2 amp breaker, switch, and USB outlet.
I wanted to protect the USB at a lot less than the 15A I had at the outlet and didn't want to hide a fuse behind the panel and already had this breaker laying around. You can get these breakers from Aircraft Spruce but you could use a panel mount fuse holder as well. This is an always on circuit so I wanted to be able to turn off the USB charger when not in use (if I'm lucky I may be able to see the status light in the rear-view). I did a similar install in the front dash between the 12v outlets as well as a 12v outlet in the back of the center console.
NOTE: The Blue Sea outlets JUST fit behind the panel so you have to poke around a bit to find where you have the most depth, then protect the hot connections carefully so they can't short to the body metal if the interior panel takes a dog/kid/cargo hit.
Here is a teaser of the fuse panel install in the cargo cupholder/ashtray location, haven't finished modifying the trim yet:
