1) harness needs to be merged with ur harness so work in the truck, ignition, power, gauges ect.

2) I would spend the extra 100 bucks and get the pump while ur at it

3) computer needs to be tuned to turn the security system off

4) ppl have notched the frame out to put the a/c in the factory side but it's a pretty big chunk to cut out and I wouldn't think it would be safe