I Installed a 50 amp circuit for a car charger I went through the bottom of the panel and cut a piece of drywall out so I could run my 6-3 romex in the walls. Then I went through a stud and on the other side I mounted the customer supplied car charger I brought my wires through the back of the box left slack in the wall in case the customer wants to change the hard wired charger to a plug in on a future date. Then I landed my wires in the panel. Went a got a 50 amp GFCI 2 pole br breaker I then screwed the drywall back to the stud and put a layer of spackle over it to cover it. Then I installed a micro surge protector in the panel at the bottom and landed that on a 2 pole 15 amp breaker. Tested everything and it all works. Also moved some double tapped neutrals and separated them under their own screws Customer has a 18 month warranty on all work preformed