u/6515-01-334-8805

Wandering if any of you fine guys/gals can help me understand this wiring for my battery. Got this thing last year and have been using shore only but finally got a battery for it. The yellow/ black wire goes from positive to electric brake switch. The white and black wires go into the frame. There is also a black box behind the battery with an on/ off switch that goes from the trailer connector on the vehicle into the frame. The 2x wires at the battery stay hot whether the switch is on or off.

What does the white/ black wires go to?

Is there a battery disconnect somewhere else?

PS the Bungees are just there since I took the lid off the battery box