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 don't remember where I bought mine but the photo I posted was from Autozone. I think this one is the correct one for the Chevy fuse box.
Silver, good point. Thanks for clarifying that. I used that tap to operate the solenoid only. Not to feed the 7-pin directly.
