Hello. I’m a new guy here in the forum. I have a 2015 and a 2016 Silverado 1500 WT’s. I am installing a dual battery system to run a power sprayer rig setting in the bed, and I am looking to install the GM switch with 4 auxiliary switches to turn power on and off to the sprayer. I noticed that the J block behind the parking brake pedal for the switches is not there, but there are flat pins sticking up from where it would be. Probably a silly question but I’m a novice at this stuff, but does that mean if I get the J block the wiring for the J block is already there to the respective relays, etc.? Or would I have to run the wires through to the relays and fuse boxes? I know the wires from the J block to the switches come with it.
Thanks in advance.