I installed an aux switch panel in my 2015 Ram 1500 and created a programming feature in the radio using AlfaOBD.
The Aux switches will allow me to control up to five accessories. Programming includes: battery or ignition power, latching or momentary, and recall the last state of the switch.

The switch panel I found at a junkyard. I picked up the relays and harness from https://4thgenramelectronics.com, but they are NO LONGER IN BUSINESS.

You can make one. Call the junk yards to get the aux switch panel. You'll need some wire. Amazon sells the exact same relay box with the relays. Search Amazon for, "relay box with fuses". The hard part will be finding harness connectors to make the pass-through harness on the back of the aux panel. If you find a panel at a junkyard, see if they can just cut the wires on the back and leave the harness connectors. Use AlfaOBD to program the truck once you have it installed.

AlfaOBD is an app in the google play store that allows you to turn on/off factory settings in your Dodge, Chrysler, RAM, or Fiat vehicle.