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Hi, I have a wiring harness bought for 5 point rocker switch. These are pretty common on ebay and seem to be the same. I am seeking clarification on the wiring diagram for this, it seems to show 2 separate connections to power (battery) why? Seems should be only one connection red and ground to battery. Anyone able to explain why the second power connector to I assume the battery? To make a loop ? I attached 3 pics all representing the same wiring instruction...any help understanding this appreciated !