Wiring An Invisibrake Monitor Light
After searching here and everywhere, I'm stymied. Trying to install the monitor light for our Invisibrake in the new Precept. In our previous motorhome, I used the 50 ft. line run from the dash to the rear of the motorhome, and a patch cord from there to the toad. I'd like to eliminate both the 50 ft. line and the patch cord, and use one of the dedicated terminals prewired on the 7 pin connector of the motorhome, but not sure which one to use. Also I have no idea where the wire on that pin is run and where it terminates, if not hooked to anything.
I see on the image below that pins number 2, 4, and 7 are all optional, but don't know if one of them can be used for this purpose. Any guidance here?
2020 Jayco Precept 31UL
2018 Wrangler JLU Toad