I have 2 Yamaha 2000 inverters for our 35' Bullet. I made a box that fits on the trailer bumper. I bought a hitch reciever and a hitch plug from Harbor Freight, found it had a wobble with just one, so I got another set, I welded a plate on the recievers so they would slide over the bumper, like a big "U" bolt, and then drilled holes thru the ends so I could put 6" bolts and nuts to hold them secure. Once I slid the box into them, I put a hitch pin lock thru one of them to eliminate easy removal. I then ran a cord from near the outlet for my plug on the trailer to the box. We have show dogs and sometimes we travel with more than can fit in the truck with us, so with this set-up, we can run the generators and the air as we go to the next show. I put a hasp and a Master lock on the box to keep honest people honest, we haven't had any problems. I have the rig in the shop getting some lights added to the steps right now or I'd send some pics.