Help! Can anyone tell me what type of plug this is?

[Stever]

This is from the Carminat Sat Nav in my wifes 07 Grande Espace. I think the shark fin arial has packed up so have bought a GPS arial as suggested on forums with an SMB connection but when I finally got round to looking at it I found this. I don't think it's a FAKRA which is the closest I've found?

Thanks in advance

[Stever]

GT5 yes I think that's it. Much obliged ladies/gents