Thanks for the reply !
As for the black box (pic #3) and the parrot extension lead I disconnected
the plug on the box, it is not where the Parrot mki9200 connects to,
it appears to be for the suspension self leveling!

I think that the connection for the Parrot extension plug (pics # 2 & 3) might
be buried with all the OEM wire harnesses in the boot/rear but so far I have not managed to located it?
Too dark now to keep on searching to locate the wire harnesses,
Scottish winter time here.

I dont know yet if I might need to cut and splice the wires on the plug
in picture #1
I think those wires are for a permanent positive (red) ground (black)
and yellow for the ignition ?

Thanks again