Can you give a bit of history here. Was you dad's car a factory A/C car with the push buttons with the heater controls or are you trying to make it an A/C car?
Hey guys, its factory ac, but in the beginning all we want is to hook up the components in the passenger compartment, and leave all the under the hood stuff out for now as it clutters the engine bay. But we still want the heater core to work and be able to blow air when need be.