12v Rear Power Outlet

[WillieB]

Hi there,
This may have been posted before.
I have a 2015 LWB Ford Transit custom 290 LTD E, I have located the orange connector for the 12v socket.
I have purchased a socket from eBay (RS components) and connected it up today and it doesn’t work.
I really need a power socket in the back so I’m hoping it’s a fuse, looked at a page that suggested that the fuse is a 20amp (F48)power fuse located under the steering wheel.I tired a 20amp from somewhere else and it still didn’t work.
Can anyone help?