Im going to add some power ports in the cargo area of my 80 series that has power with the ignition off for charging a fridge and whatever else I put back their when camping. Initially I was going to put a switch on the dash so I could switch the ports on and off. But then I thought, well whats the point of having them run through a switch? I can just unplug stuff instead. Is their any good reason to run a switch to the ports in your experiences?