Can anyone tell me what the extra 5 wires with rubber plugs in them that are located beside the control box are used for .I received no info with this unit in regards to acc's .It is model 881170a15, 8 pin I believe.Power trim and electric start attached to a new Mercury 25 hp 4 stroke. I would like to install a tach and hour meter on my console .Thanks for any info.
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