I have a 2004 chevy 2500 hd duramax allison The 7 pin plug does not transfer 12volt to the trailer plug (both the rear or the in box plugs are the same) is their a fusible that has to be added some w...
Thanks Dave i will get one next time I pass a store and a continuous duty relay too I have been loath to cut into my harness but there is a batt block beside the alt so I can run 8 gauge wire to the camper from the relay Plan is to use an Anderson 50 Amp grey disconnect to remove the slide in camper Thanks again Mike