Look yes, comprehend, not so much. Loco being converted did not start life as a LC loco hence there is no switch in place. Power pickups have been disconnected, I have no intention of this ever running on track power.
All that being said I assume I need to splice into the wires on the battery to connect to the LC board. It looks like I do need a way to turn off the power feed from the battery to the LC board. I am always hesitant to cut any wire before I am certain I am not making things worse. What connectors to you recommend in the spliced segment? Are wire nuts sufficient or should I solder the connection? Anyway thanks for the responses.