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Hello my name is ***** ***** I will assist you. Can you please advise the engine model you have so that i can check the wiring diagram?
Hi Dennis since it is a Mercruiser engine you should have a single wiring loom that connects to all the gauges. As for the alarm the wires that go to it should be colored tan-blu and purple.
Hi Dennis, the standard alarm colours are tan blu and purple, thus i do not know what the black wire is, If it has been replaced from standard or not. As for this box does this have another wire? what color it is. Can you send me a pic of this alarm?