2009 prostar ISX CAN ANYONE tell me where the 12 volt output wire from the altonater goes to...mine is corroded and I want to replace it.....
Well my starter wires are extremely rusty so I didn't want to open a can of worms I ran a extra alt wire to the 200 amp cab feeds behind the air cleaner what a big difference before i would see voltage around 12.3 to 12.6 now it's at 13.9 to 14.2