True that! Use case is a big driver. I'm be installing an auxiliary power system (managed via RedArc) fairly soon to handle these kinds of lights (or other gadgets like a powered cooler) that may be used "long-term" with the engine turned off.Yes it currently runs off the main power using the 12V Power outlet in the cargo area. The light comes prewired with this plug.
I’ve seen installations of other lights that tie into the woeful OEM light OR you could tie into the upfitter wiring point that is in the passenger side rear end. I’m guessing it’s behind the plastic panel where the cargo light and 12V power outlet reside. I just haven’t dug into this area yet.
This would give you three different options to switch the light to best match your usage requirements.
So far using the lighted push button on the light assembly with power coming from “always on” power port, is easy to use. I really only need the light when I’m standing at the tailgate.
I don’t want to turn an upfitter switch on every time I want to access the cargo area. although you could leave the upfitter switch on and use the push button when you were expecting to access cargo area or turn off the upfitter in longer term storage situations. Also I plan to use the upfitter wire for an external lighting option once/if I get a roof rack.
Too many dang considerations for a simple lighting requirement!