Good point; at the price point of the item it surprises me they did not pony up the ~25 cents of connectors/components to allow the user to use either track power or external Accessory power like they do for so many other track pieces.
I suppose you could cut the red wire, strip it 1/4"-1/2", twist-wrap it to a similarly prepared wire carrying your 12-14V power...no soldering that is.
