I have the controls and cover for a non AC X1/9 but I need to change everything under the dash I have been told. Therefore I need: A heat box the holds the heater core. A heater core with no leaks (yes I am picky) The heater core valve that stops and start the water (again a working one) The cables that control everything. A couple of questions: Is the blower motor the same for ac and nonAC? I need a blower motor too (see below). I have the defroster flap and I have changed the side vents to fresh air, anything else needed. Thanks for your help.