Where to put hole in center console?

???

Not a good description to go on, but for what I think you want to do, you should take out the transmission joystick/gear shifter first. Then you will have access to the inside of the console, which should make installation a lot easier. NOTE - if you disconnect the shifter wires, do NOT start the car until everything is completely reconnected, or you will throw codes.

Instructions for easy removal are in the first part of the instructions to install an electronic shifter.

Stage 10 Electronic Shifter available now | PriusChat

Stage 10 ESS for 2009-2015 Toyota Prius Installation Guide | Stage 10 Productions

 

To remove the shifter surround you pry at the left (driver's side edge). A broad bladed pry tool with plastic (or taped) edge works.

I've found all the info in the Repair Manual, but it's a royal pain digging it all up, it's all over the place. As @bobzchemist says: once you get that off it might be enough, or you can see better where to go from there.

If you're still stuck I might get in gear, try to collate some stuff.

 

Before I put in a DC-DC buck converter and wired in my own usb panel under the bridge on 2010, I drilled two holes next to each other to get the connector to pass through the bottom of the console under the armrest next to where the screws that hold down the console. Then I ran two usb cables to the console 12v with 12v usb adapter and the other end out the bottom of the bridge below where it meets the cup holder, then screwed the armrest console back down and put the pad over the wire in the console. Very clean.

 

That sounds intriguing. Pictures?