I’m out camping in our 2012 Baystar. Before leaving home I changed out our house and start batteries. I also attempted to install a small circulating fan in the fridge. I stopped that because the led lights went very dim. A day later while on this trip the two lights over the bed went dim and now don’t come on. A day after that the bathroom lights are very dim or flicker. All other lights in the bedroom and cabin work fine. No other electrical issues. Well except our pioneer radio/nav doesn’t come on. Any of this trigger a source?