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Dangrebel

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  1. A relay is basically a switch that senses power from something then turns on the circuit to what ever you want. Example, I have hid kc lights. I didn't want to run a switch on the power wire. That would involve extra 15 foot of wire. Instead I tied in to a pre existing switch, ran a single 20 gauge wire to a relay righ beside my battery so it turns the relay on that then give my hids power. Google it it's a very common thing that is used on many vehicles and no you wouldn't have to take your dash apart

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