its needs to be set for 12pole on the setting on the back, I have a couple
green wire and black wire and a postive from your 703 control loom
I can PM you what i have, I may have a 703 harness also from engine loom to back of guage, which carries your trim position sensor wires, so it gets displayed on the guage as they are multi function guages, low oil and overheat alarm also
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