All wiring in all 1200's is different, depends on what year, month, trim, body, lhd/rhd, and gearbox type. Nissan just doesnt make life easy for us.

I pulled the whole dash out of my 71 wagon to put in my 73 sedan. Still wondering if i swapped the wires around for the ignition switch properly :-S Apart from the igition, there was only one wire in one of the connectors in the firewall that was in the wrong spot. It's fairly easy to make a tool for removing the blade/spade type connector pins from the sockets. I can post up a photo of it if you like?

I forget what I used for the round cluster socket though. The coupe to sedan swap (is that putting a sedan strip cluster in a coupe or putting round cluster into a sedan?) should tell you what each pin on the round gauge cluster does. You should also be able to follow where each part of the printed circuits on the 2 clusters go, and just swap your wires to suit.

Have you got both clusters on you? If you can take a photo of the printed circuits on each of the clusters and send them to my email address I can figure it out for you if you like?

Ask Chris (oan###) he should have plenty of diagrams for you.