My tach is wired the same way that Swervin's is.
12v+(Constant) = Ignition Switch
Ground = Parking Brake Bracket
12v+(Switched; for light) = Dimmer switch wire
I'm HOPING I didn't kill the Alternator. It's BRAND NEW. If I did, it's warrantied, and I'll just take it back and plop another one on there.
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