I know there are some on here who wanted this, as by default the 12V socket only comes on with the ignition - but it turns out it's very easy to make it a 'permanent on' socket. I discovered this completely by accident while wiring in my dashcam today. The fuse for the cigarette lighter is apparently movable depending on which option you want (I think Peugeot do this too, I have heard anyway). I haven't actually tested this myself however, but only discovered the functionality while poking around the fusebox with a multi-meter today. Here's a picture of my fusebox, which can be found by removing the panel at the back of the glovebox - there's a finger hole there to make it easy: If you look just to the right of the 2 15A fuses (the blue ones), you'll see a 20A fuse (yellow) that seems to be going between 2 rows of fuses. I looked up the fuse in the manual to see what it was, and it's the fuse for the lighter socket / 12V socket. The reason for this is because the fuse can be moved depending on whether you want 'on with ignition' or 'on permanently' mode for the the socket. As it's shown there, it's in its 'default' place of on with ignition only, but if you were to move it up half a fuse-length to be in line with the 30A and 40A fuses on the row above, it would be permanently on. I've confirmed with a multi meter that the contacts above the fuse are permanently on and the lower one (the one that the bottom of the fuse is currently in) is on with ignition only. The middle contact (that the top of the fuse is currently in) goes to the socket itself. Like I say - I haven't actually confirmed it 'end to end' as it were (as I have nothing to plug into the socket anyway!), but I hope someone finds this useful. It's certainly an undocumented feature!