The install is easy if you got them with the proper adapter harnesses. The harnesses plug right into the existing headlight plugs in the car, beyond that there are two wires from the driver side light that connect to the battery, and two that go from the driver side light to the passenger side light.
You don't need to deal with the relays in the Morettes as they are already wired into the lights and there are no external connections needed for them.