SCU wiring vvc engine conversion

I have a 1.4 mk1 zr that i have removed the engine from, and are currently in the process of putting a 1.8 vvc from a mk2 zr, I have removed the old scu from under the steering wheel on the mk1 a few months ago.



I have just today removed the scu from the donor car and gone to fit it in my mk1. When I removed it from the MK2 it had 4 or 5 wires to disconnect now going to plug it back into the mk1 it has only a large green and a large orange connector.



Is this all I need or am I missing something?



Car is a rally car so has no central locking etc, but runs standard ecu with fob and alarm.

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