Hello Snowy
Welcome to the site.
On slight word of caution. If you are thinking of running a tyre inflating pump from one of the auxiliary sockets, you may be unlucky. Most pumps, my Slime for example, draw more than 5 amps, either on first starting or when puffing hard.
This trips the Canbus system and cuts off the power to the socket, the equivalent of blowing a conventional 5 amp fuse. It may well prove easier to power the pump direct from the battery (crocodile clips are popular) via, say, a suitable 10 amp fuse. It's not everyday that you need the pump, I guess?
Alternativly, you might want to go the whole hog and add a dedicated socket and fuse, wired direct to the battery. This might be useful of you want to run other devices, beyond a pump. For instance, a light or as in input for a battery charger perhaps?
Nippy Norman sells some good sockets and there are others around:
BAS-BS10
or
BAS-SD14