I have just done a pig of a job. The lighter socket on my Camry packed up and I use it for charging my phone, I thought well there must be a fuse somewhere, so I looked through them all under the bonnet, wasn't there, I knew there was another little fuse panel hiding behind a little fold down storage flap low on the right side of the dash. I looked there and sure enough there was the fuse, but it was ok and it had power on it?
Ended up stripping the centre unit out to get at the socket and found that the power comes in on a spade connector and then there is a short bit of wire linking it