I bought an original actuator for my '94, but it was easier to fit an after-market one at the time. I seem to remember that the wires were there. Mine was Sept '94 .. around this time a few things changed.
I still have it back in Australia. I'm now in the UK and fitted a after market keyless entry system to the '96 car I have here. It came with a "central locking system" not keyless entry, but cuting and wiring the unlock / lock on the passenger side was easy enough.
17" ROH Adrenaline Alloy Wheels, Superchip (for hi-octane +12hp), Stainless steel scuff plates, Powerfolding jdm mirrors, Mazda 6 MPS brakes (front + rear), 929 brake master (mx6 reservoir), JDM headlights, Altezza tail lights, Modified stock radio/cd with line-out +amp, Sound deadened doors + rear quarters << massive improvement