Check the wiring behind the 12v outlet first. Mine was disconnected last year. I used some plyers to smash the female connectors slightly to make it a tighter fit - never came off again.
So im like the 3 person that posted here with the same loose wire issue - I bet this is very common so I would check it first.
Let us know what you find out.
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor