Hopefully it isnt completely hacked. Mine was hacked at the compressor, or rather where the compressor used to be, but the wiring was left hanging. The wiring goes along the firewall where it looks like it plugs into the main wiring harness, I disconnected it from there in hopes to find the rest of what I need in the future. I'm in the same boat as you (minus the no-heat, it throws heat out like a furnace!) so I'll be watching your thread for when I have to do mine. Best bet is to find a donor and transplant the entire system, taking detailed pics for us of coarse!