Mine all installed and wired, positive wire goes through firewall location as stated by others, wired to battery hot with 15 amp fuse. Dedicated ground to brake booster bolt near steering column under dash, 8mm x 1.25 nut did the trick. Installed a Radio Shack disconnect connector in wiring at console in case I ever need to remove it, just unplug and take it out.
Secured it to transmission tunnel with two 1/4" x 2" stainless steel self-tapping screws. Where it hits the floor is actually a rigid plastic cover under the carpet in case chassis had a manual transmission. So don't go crazy tightening them down, snug will hold things just fine. Raised the front end with the jacks and crawled under before I drilled, plenty of clearance from any obstructions.
With console in place still plenty of room to get up and go back to coach, way more than I had in my two previous E-cutaway Class C's.
Very happy with the console and how it fits!
2014 Seneca 37TS
Toads: 2014 Ford Explorer Sport or 2013 Ford Focus ST