as above, there will be 5 (or possibly 4) wires on a plug

stick your pointy tester into them and see which ones go live when you lock and unlock the door and wire them into that

the 90 spec cars use the same loom but wired the other way around

it'll be more difficult to put the kick panel back on again if you don't tidy up the loom behind it properly, wiring routing wasn't a strong point during assembly