Here's a picture of where I installed the plug on a different trailer. Easier to install here on the 400 compared to the side wall near the battery. The junction box is below this on the front frame.… (View Post)
I installed a Zamp Solar port on the side of the front cubby, like on the 320, and ran wires to the positive and negative terminals in the junction box right below it. I attached it to the same lugs … (View Post)