here are a couple of good threads on this that should help
Howdy. New member here. I’ve been pouring through 2nd battery install and wiring threads and still have a few questions I haven't been able to figure out. I’ll admit they are basic as I’m still in learning mode. In the spirit of full disclosure, I’ve reached a point where I’m suffering from...
hondasxs.com
You guys have to be so tired of this, I couldn't be more sorry to drag you through it again, but I'm stuck. I've read everything this site has to offer and it's still mostly a foreign language to me. I've done my best to digest beautiful wiring diagrams provided by others ( like JoeyL), and...
hondasxs.com
also i put 3 wiring diagram examples in this post you can look at
Do you see any issues in my wiring diagram? I forgot to draw in the key-on to stinger with Honda sxs harness from lighter and that ground runs to the fuse block.
hondasxs.com
the Wiring Diagram Simplified 2 file uses a stinger relay and fuse box for accessories, where the accessories are activated with key on power
the Wiring Diagram Simplified 3 file is set up so the accessories on the fuse block are always on
the Wiring Diagram file is more complicated and you can switch the accessories from key on, to always on, or off
also note that i have an AXON winch shown so yours will be wired differently if it is any other winch than an AXON, just connect it to your second battery and wire it as shown in the instructions.