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Auxiliary hot wire?
I don't have a wiring diagram past 2013. I am wiring emergency lights on this truck. I need a hot wire that is hot with key on only. I believe it just powers the switch ID lights on the emergency switch box so I don't believe the draw is much. Anyone know what... Login to read more. 
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| Engine | 6.0 L |
Vehicle Data
2014 GMC Sierra 2500 HD WT 6.0L
| Engine | 6.0 L |
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