Thanks, Mighty_J. I dug around in the left console today. Unfortunately, my 3717 is not on the same chassis as your 4334. There are no unused wires under the left console. In fact, everything is distressingly neat <g>. I must say that overall, the wiring on my Newmar is FAR better managed than either of my Entegras, nice as those coaches were.
Anyway, nothing there. I'm sure I can get something under the dash. I'm going to NIRVC in just over a week; I'll see what they can tell me.
2022 Newmar Ventana 3717