FWIW I did this without removing the door. I drilled the door from the inside, which was straightforward. I drilled the a-pillar from the inside of the cab, behind the kick panel then through the a-pillar. this was tricky though, because inside the a-pillar there is a gusset on an angle that runs from the kick panel side to the outside of the a-pillar. If you drill where the gusset is, you're hosed on that shot. you're gonna have to swiss cheese your kick panel till you hit the right spot (though once you drill it you can kinda see where to/not to drill on your second shot). oh and don't hit the door trigger wire. touch the bare metal up with some paint, install your conduit (i used the universal conduit from classicparts.com), run your wires, reinstall the your plastic kick panel cover and BOOM done.
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