I’ve basically used the fridge switch and red light only on the panel . I then replaced the old broken battery condition meter with a digital unit from ebay
I’ve also fitted these yellow front fog lights. Had them for a while. Was going to put them on beetle but changed my mind. The square ones I had on were rusted. Not sure I like them yet. Made by Hella but definitely not good quality. Made in India. Probably only last a couple of years.