7 pin plug
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...
Forum Discussion
Gaetan - When you arrive at your destination, your batteries in the trailer should be charged. Unplug the 7 way connector and you won't drain your truck's batteries overnight.
