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Old 12-16-2012
WJM WJM is offline
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Help Volvo MD5A idiot light wiring

Trying to get all the original idiot lights working on the boat I just bought. It's a Santana 28 with a Volvo MD5A diesel the oil pressure and water temp are pretty straight forward but having questions on the charging light the wiring diagram shows it going to the alternator but I'm sure where. The alternator I have is not the original also. There are a black & white wire coming out of the back of the alternator (see pic) the black goes to charge the battery the white goes to nothing? But when I connect to that, the initial alarm sound check at ignition drops in volume and just doesn't seem right? Any ideas?

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