Everest 7 blade wiring pin out?

[Electric Bill]

I've got a 2007 Everest 5th wheel and wanted to know the exact pin out of the blades. Main thing in question, the backup light circuit and do they have a pin for positive 12 volts from truck to charge house batteries on coach? My experience with older systems had a battery isolator mounted in engine compartment and an 8.AWG. minimum size wire going to the coach for charging.
Any help/suggestions would be appreciated. Thanks Bill.

[chuckster57]

Your 7 way plug will have a 12V charge line. Reverse will be there but might not be hooked up.
E Trailer has diagrams showing both sides of the plug.

Depending on make/model of truck, charge line may only be live with engine running. Also some years of Chevy need the charge line hooked up.

[notanlines]

And here it is:
https://www.etrailer.com/question-363.html

[5J's]

I hope this helps16496