I have a set of grabars, too. I've seen many styles, but this style is my favorite.Did a a few things;
1. Installed door handles
2. Hooked up power for the winch.
3. Fixed the rats nest at the door harness from the PO who tapped into it. (See other posts)
4. Installed new RR WSS (no picture).
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Which switch are you using? I have a cutoff switch I was going to install that I was going to use for a different project. It's a Blue Sea model 3000. Not sure if I want to use that one, though or save it. Rating wise, it should be fine.