I posted one on here a while ago when someone asked the same question, although I cant remember where. It was a screenshot from the workshop manual's wiring diagram, so you could probably look in there? Again, search will bring up where to get the wsm.
Oh and there are two loops from memory. The cigar lighter and the accessory sockets are on different circuits and have different ratings. The Owners manual states very clearly not to use the lighter sockets for anything other than the lighters and plug whatever you want into the accessory socket, hence why you have 4 sockets in total.
It was me that couldn't figure out why my front lighter and cubble outlet wasn't working. At first I only checked the front glove box fuses, then for shiits and giggles I looked at the rear fuse box, and low and behold the rear fuse was blown. When I replaced the rear fuse all my outlets work (until the wife drops more tin foil in to the lighter and then plugs her phone charger in !!!)