Lark, J35 and its Aux input

[Ziggyfish]

Hi,

I'm in the process of rewiring a JaryCo lark 2023, to enable me to install an renogy inverter charger 2000 W, as well as swap the fridge over to a 12v compressor fridge.

During this process I want to also swap the fridges power to run off the house battery through the J35 baterry manager rather than the alternator it's currently connected too. This will run off one of the output terminals from the J35.

While I am doing that I want to connect the 12V supply from the car battery/alternator to the J35's auxiliary input using a MiniBoost charge controller.

However, I noticed the J35 already has Aux wires connected to it. But I am not able to find where these wires are connected to. I've put a multimeter on its pins, and there is no voltage on it, nor can I tie those 2 connectors together and using the resistance setting, find any connection to the trailer plug.

So my question is firstly, does anyone know where the Auxiliary input for the lark is connected to, and is there a wiring diagram available for a 2023 lark model?