Technically they are not "upfitter" wires. Ford calls them "Blunt cut pass through" wiring. They match with four blunt cuts under the dash so you won't have to run wires through the firewall for accessories.
They can be used for any accessories that uses a small gauge wire such as plow controls, aux lights, etc. Don't have to be usedin conjunction with the upfitters. Pretty smart thinking for Ford if ya ask me.
