This wire group is for power accessories you may have added to your car. They are labeled for power windows, locks, fuel pump, battery power, and accessory power. They can be used for just about anything within the fuses' amperage bounds. Since the ignition-gated fuel power was the only item from this group we needed, we removed it and installed it into one of the blank receptacles in the rear body harness. It's a good idea to throw a couple extra wires in this bunch to use if something new comes up later in the build.