Wiring for 12vdc socket in load area

[brucekeeble]

Hi guys..

So I've looked through what threads I could find on installing a 12vdc socket in the load area.

I have a 2008 (facelift) Berlingo Multispace VTR.

There is no socket installed from factory but I have one on order and will place it where the factory location is just next to the drivers side rear speaker.
I've had the panel off today and there is a bunch of wiring behind there.

There isn't a specific pair of wires that look like they would connect straight to a socket.

Does anybody know which of the cables I need to use? It looks like there is some form of relay in there also.
Or do I need to run a new supply from the fuse box?

Any help would be much appreciated and if I've missed a thread explaining this already then apologies.
I'd rather not start disconnecting wiring to the rear lighting cluster without knowing what's what.


Thanks in advance.