I noticed in my camper Jayco doesn't use wire twist nuts. I stopped by
HomeDepot and picked up a pack of these 'new-fangled' wire quick connectors and it was really easy to use. You don't need much wire (.5 inch?) that slides into each hole to have a solid connection.
I only wish it was easy to disconnect, you have to cut them off because the wires will not pull out. For your use I don't think that's a worry.