If you prise out the light cluster you will see the feed as a white plug with three wires the black to the right is earth and the middle red/black permanent live.
I wired into those. okay it means you need to switch the cam on manually each time. I suspect the wire to the left is ignition or door switched ,but this set up will do for the moment. I used an in line 12 to 5 volt module and the USB feeds through the roof lining to the cam in front of the mirror.
All the rest tucks nicely into the roof lining to the right where the cables originate from.
You can buy the in line voltage converter modules on ebay for pennies. I use one for the sat-nav as well, much neater than a cigarette lighter adapter with wires trailing everywhere!
Last edited by Gilbere; 02-05-14 at 14:40.