im pretty sure with the f150 all you need is a trailer light tester plugged into the trailer plug so it thinks a trailer is hooked up.They have this for the 2021 Sport already I believe so it will be available for the 2/4 door any minute now. It just plugs right in to the OBD port.
https://www.rangetechnology.com/products/start-stop_disabler/ford/parts/RA006B
Sponsored