Replacement dash wiring/plug/heater help required!

Evening guys.



The Slowver will be back on the road in the next couple of weeks all going well following a pretty comprehensive makeover. One of the things I've changed is the Mk1 dash to that from a Mk2, however I have a couple of plugs left over, as detailed below:











I'm not sure if they may be from a redundant plug, as the car is pretty bare bones, however I seem to have run an earth from something into one of the plugs so I presume it's still in use. Anyone any idea what they're for?



Also, IIRC there are five cables that run into the back of the heater control unit - does anyone have a diagram/picture of what colours go where?



Cheers in advance :broon:

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