Citroen RElay 2015 12v auxilary

[Sid Trowen]

Hi, apologies if this is not in the right area.

I have a 2nd 12v power socket without a socket, the power connector is pictured, Halfords had no idea what it was.
At the back of the van there is another socket with a power connector [pictured 3]

Any ideas or where to get one would be greatly appreciated

many thanks