Looking for brake light switch on 86 coach . I see the terminal for the hot side of switch (#3 yellow /blue wire ) but I need the switched side  for trailer brake controller .
Thanks,  Chris

https://www.youtube.com/watch?v=scerfgdSjlo

This video describes describes a simple 5 dollar relay mated to a WiFi chip by Sonoff:  How to turn everything on and off.

Eric

My transfer switch pedestal input stopped working so I fitted a new Surge Guard 40350. My RV-C network is plugged in, but I don't get any volts/amps on the touchscreen display in the coach. I suspect that the RV-C needs moving from (for want of a better description) the top 2 holes to the bottom two holes of the RV-C connector. Has anyone done this upgrade to the 40350 before?  Newell now uses this transfer switch; I bought it from them.

As an aside, when it died the advice from Newell was to