Hey guys, Really quick, Before I order a new heater box. How does the heat work. I read the manual. There is no switch that turns heat on or (68 mustang coupe 289.) The switches are just cables that move doors open or closed, as I read. And as you already know. This leads me to believe that the blower motor always stays on, and that the heater core always stays hot. Is this true. I just want to make sure wiring works before I try to do the heat myself. Thanx Paul