I've got a'95 F250 SC PSD with power door locks. There clearly is not an RKE (Remote Keyless Entry) module in the truck, but there is a curious capped harness next to the premium sound amp (the service manuals don't give the pinout for the harness and just call it "cap for automatic transmission with premium audio", which is just strange).
Anyway, what I'm hoping is that someone knows whether or not the RKE hookups are usually tucked somewhere deep in the Instrument Panel off the main wiring, or if there are just plain Power Door Lock models with a primary cabling that completely lacks the harness for RKE (which doesn't seem to make much sense to me, but hey, I'm no electrical engineer).
Thanks, Gary