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Reenmachine Headlamp Conversion Photo

Next, attach the black wire of the harness to a good ground location near the passenger-side headlight area. You can also connect it to the negative terminal on the battery.
Upgrade '69 Mustang Headlights - How To

 Next, attach the black wire of the harness to a good ground location near the passenger-side headlight area. You can also connect it to the negative terminal on the battery.  View Related Article

 

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