I just went through that. We were in Blanding, Utah. My 12v lights were flickering and finally failed. I would have had to bring a tech from who knows were to find and fix the problem.
This forum came to my rescue. Yes, that solenoid is connected to the salesman's switch. I removed the solenoid and tied the three red wires together with a nut and bolt and wrapped the connection with tape. Cut and taped small wire that goes back to the switch. The three cables were stiff enough that I'm not concerned about them shorting out to anything else in the box.
Some suggested putting all three wires on one of the solenoid terminals. I just didn't seem to have enough slack on one of the cables to do that.
2016 Winnebago Journey 40R - 2012 Jeep Rubicon
2 Arctic Cats, 3 Shelties, 4 cats
Bottle of Jack Daniels & wife