Yeah - for a winch I think you want to connect directly to the battery like the Dissent Off-road folks did in their YouTube video. Sine my compressor claims to only draw 20A at most, the 40A breaker should be good.
Its a standard 50A anderson plug - they are usually grey but also come in red. It also has a black dust cover on the end which makes it look odd. I cut the battery clips off my compressor power cable and wired them to an anderson too for easy hookup without having to remove the plastic tray to...
It is interesting that they left a high current terminal totally open. I wonder if this is used for something on other versions of the vehicle or maybe shared with the GX550
Quick update here. Went ahead and connected to the open terminal (yellow arrow above). According to the red terminal cover, this is a fused (200A) output. I added my own 40A breaker just to be extra safe. Compressor works great and much easier to access power through the upper door with the jack...
What's the best option for making your own connections with the rear battery? When I took off the positive terminal cover, there appears to be an open terminal available (yellow arrow) - is that preferable to attaching directly to the terminal (red arrow)?