Solar Controller location
I agree, mounting closest to the batteries is best, especially if you use a MMPT controller that can handle higher series connected panel voltages. I don't have the same trailer but my sticker and solar wires were by the main control panel just inside the door. I removed the main control panel to find the solar wires. Mine needed to be spliced as they were cut from the factory. I traced the wires from the main control panel area to the front above the battery compartment, the ground was terminated elsewhere and was not found in the group of wires. Spliced in the controller and breakers and moved the wire original mounting location on the buss bar to bypass the original 30a self resetting breaker. My controller is bluetooth and has no display other than LED lights that flash codes, easy checking on the phone app but I'm not satisfied with it's range, I have to be outside to connect. Too much metal!
2020 Pinnacle 32rlts
640 watts solar, 300AH lithium
2020 High Country Duramax 3500
Ms says I'm full of useless knowledge and other stuff...