[baddawg65]

On the outside box if you take off the little cover (2 screws) is where your heat cable connects. On the inside it looks someone put a knob where your defrost cable connects. The resistor goes on the side of the inside box facing the firewall, and is for different blower speeds. I just replaced the cables, levers, blower motor, and hoses on mine. Had to condem the mice condo out of it.