I wired mine to the running lights. I just turn on the lights and my Garmin camera mounted above the T@Bs license plate pops up on the GPS screen. No need for a switch.
I wonder if there might be a way to attach a small block of wood or other device inside the cabinet & above the unit that could swivel out of the way for removal, but would be above the unit to prevent it from jumping up.
Ahh,..the line loss rabbit hole. Usually, the "losses" for "short" cables used just to move the panels around are in the single digit percents. I gave up worrying about it. We aren't rigging up 50 panels and a dozen batteries. I use these 10 awg cables from Windy Nation. I have 20 and 30 foot lengths. https://www.amazon.com/gp/product/B01D7VBKQG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Re: Frankly its unbelievable that NuCamp builds a quality camper but just doesn't make it work better...