All the wires are well-marked and simple to connect. The biggest job was to run a fuel pump wire to the back of the car. We chose to run the wire through the firewall inside the lower doorjamb, back into the trunk and out of the body near the fuel filler where the fuel gauge wire runs, then forward to the pump. We added extra protective sleeving where the wire ran on top of the fuel tank, and taped it down so it wouldn’t get pinched between tank and body. The fuel pump ground wire was connected to the body near the forward tank strap anchor. The rest of the wiring involved mostly plug-in connectors.