The 1983 has no vacuum actuator in the driver's door, just the switch, so no matter what you do the remote lock will not open that door. You have to plumb in a 1985+ vacuum actuator/switch or add an electric actuator to trip the lock and the switch (the easiest way ).

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The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)