Expandable circuits are not included with the gauges, they are an optional add-on that would be purchased separately. If the expandable circuits were not purchased with the kit, they can still be purchased here on our website directly. They can also be found at most local auto parts stores. If you do not wish to wire the gauges to the fuse box, you will need to locate the appropriate power sources elsewhere in the vehicle. This will require installing inline fuses to the wires when making those connections.