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Old 07-01-2013, 06:36 AM   #42
Ian c
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Join Date: Jun 2013
Location: Socal
Posts: 560
The cigarette lighter end you took off will have been + to center

Some 12v twin cords have a marking on the plus wire ------
Or if its coaxial the inner should be +

Last edited by Ian c; 07-01-2013 at 06:39 AM.
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