On a 2022 model, looking at adding a simple high current relay to supply auxiliary loads off the starter battery ( air compressor etc, rear fridge) instead of using a voltage sensing relay. I am looking for an ignition supply circuit/fuse to 'control' the relay. does anyone have suggestion to pick up a supply. the dash mounted fuse box is generally not usable ( due to difficult access) The engine fuse box 'might' be a better option. any suggestions appreciated. particularly getting wiring into the fuse box.