Wiring to run fan and delete a/c ?

[70GARY]

Hi guys. Like to run a heat defrost on my a/c car. All the a/c under the hood is missing except the wiring and the box under the dash is still in place with the a/c controls. I have installed an a/c delete blower housing on the firewall and the blower needs the 3 speed power to work. Any ideas?

[chevymaher]

I am not sure what your asking. If the wiring is still there it will still work. Only thing missing is the speed resistor and the relay that was in/on the old air box. Plug it back in and find a place to put it.

I had to make that part on mine so I got wiring diagrams down in my shop. We can get it going again. Biggest issue is do you want a off position. 69 and up were on all the time and 3 higher speeds. But by eliminating one wire it is off and 3 speeds.

A under hood picture of what you got would help see what is needed/missing now.