My AD never had a back up switch, but I plan on adding back up lights with a manual switch. I suppose you could do the same. Another advantage to a manual switch if you use aftermarket driving lights like I'm going to do is that you can switch them on while driving if some road rager is flashing his brights at you.
I lived in Denver, where such road ragers are an everyday occurance, and they get mad with a slow AD truck is in their way.
