Onto installing the Vintage Air system - pretty straightforward to get it installed inside the cab really. Only issue was that I ended up cutting one of the pieces of ductwork slightly shorter than I wanted, so I had to grab another length at the parts store (though oddly enough the other 3 pieces cut were all bang on in length and the one that was too short was really just what remained from the single long piece that came in the kit....)
I also needed to do some wiring for the remote door locks, ignition kill, remote operated rear window and the power seats. Being as I needed a few relays, fuses, and a place to mount the receiver & door lock modules, I just built a simple little aluminum panel to tuck up behind the dash mounted to the firewall. It's accessible from under the dash, but mostly hidden (you can see some of split loom covering the wires, but it won't really be noticeable - I could have hidden it all but then if I ever have to change a fuse it would be a major pain)
