They are pre-set sockets for accessories. For example, I have the protective grille installed for my fury baby, and thats where they’re attached to.View attachment 989 Took my first long-ish road trip this weekend and spent some time in the back seat for the first time as well. Anyone know what this is or what it's used for? Seems like something fits in it then locks in place. Also first public charging along the way...good experience all-around!