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2016 SD187 wiring under the dash

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Mike_54729
Mike_54729 Member Posts: 5 ✭
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Hi All, First time jumping in here. Does anyone know why I have 3 unused wires wrapped in my wire cluster, located under my steering storage area? Colors are black, blue and purple. The have female connections and look like they are ready to hook something up. Extra accessory hookup? Thanks!
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  • cjjjdeck
    cjjjdeck Member, Moderator Posts: 1,872 ✭✭✭✭
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    Below is the ABYC Wire Color Standards Chart which can help you identify the wires



    2012 SD237 I/O Mercruiser 5.0L MPI ECT/ Bravo 3
    2012 Load Rite Elite Tandem axle trailer

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  • fosferglow
    fosferglow Member Posts: 2 ✭
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    Those three wires are provided for an extra instrument like a depth sounder or compass.
    Black = Battery Negative
    Purple = Ignition (switched battery positive)
    Blue = Instrument Lights (+12v when running lights are on)
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