When they wired mine all the DC wires were solid green / solid yellow.
I forget which one was hot.
In this photo are DC wires that go to the left slide motor, the right slide motor, and the fresh water tank heater. There are also two 110 VAC circuits and the wires from the fresh water tank sensors.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW