I mounted a 7-pin receiver next to the tongue jack. The TT 7-pin is stored there to keep it from dragging the ground. Little sealed push button switch can connect The top pins to turn on the lights.
Ask anyone who has busted their head open on an awning support, cracked a knee on the tongue or tripped over the sewer hose if those lights are a good idea. And, at least around here the possums and armadillos stay away from light.