Not real sure what i have. I havnt been able to figure out from the previous posts in the forum search as to what i need t make this operational. The truck will heat up real nice after i drive it a bit which wont be so good this summer. I know I am missing the hoses and duct vents for the defrost, there are controls under the dash on the heater unit but nothing to hook them to to actually control it and there is both one orange wire in the cab and one in the engine compartment. Does anyone have any pics of what the system is supposed to look like? I am assuming I am missing the fan and fan motor in the engine compartment. I have up loaded 2 photos to my photo bucket link. Thanks in advance for your help. Steve