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Old 02-25-2010, 03:42 PM
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Default Re: Light bar question

I would have a dual relay/switch set up.

The first switch would be controlled buy the reverse lights. I would run a jumper from a factory reverse light to a relay that would engage to have them come on automatically. I would then have another relay controlled buy a manual switch on my dash.

Both relays would be powered from the same constant 12V source. On the output side I would run a jumper from one relay to the other then one power wire to the bar.

This would keep you from shorting the system.
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