924 Rev Counter Plug Wiring Help

[markscoot]

Hi people,can any one tell me where the wires go on the plug at the rear of the rev counter unit?
I am using the unit for another project and havent got any idea where the wires go or their function.
From the wiring diagram I can see a black positive and a green signal wire but no ground or what numbers on the plug they correspond to.
From the witness marks on the plug terminals it looks like only three wires.I dont want to get them wrong and destroy the unit,can any body tell me the correct numbering position and description.
Cheers, Mark.

[924RACR]

There is indeed a ground wire, colour brown. Don't have the layout handy though, sorry... wish I'd seen your Q yesterday, had my dash out...

[markscoot]

Cheers anyway fella
Any one else likely to have their dash out in the near future?