The brown wire goes to the alternator light if you have one. So if that brown wire is from the regulator it's not supposed to be there. And see below for diagnostics, but.. just in case..
Does your new dash have a charge indicator light? If it's LED, or not hooked up, it may be causing your problem.
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I like wiring. No joke.
Last edited by cjsgarage; 12-17-2015 at 12:45 AM.
Reason: i had typed some misinformation
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