The 8-rocker switch control center plugs directly into the 12-circuit Pro Street harness making this the easiest and most complete way to wire a race car. Harness circuits include electric water pump, radio, electric fan, fuel pump, brake lights, headlights, tail lights, wipers, turn signals, flashers, horn and coil. The switch panel features heavy duty rocker switches to control start, ignition, fan, fuel pump one, fuel pump two, water pump, lights and one accessory.