Towbar Electrics Question

[Stomper]

Hi all, just fitted a towbar to my ML (W163) and have located the ISO type sockets behind the vents by the fuel filler. Could anyone tell me what is what on these sockets as I cannot find a wiring diagram with these on. Any help regarding configuration or core colours much appreciated. Thanks in advance Dave.

 

[JohnnyRob]

Are you sorted yet Stomper? I've got these details; if you stll need them, i'll dig them out (only just seen this post!)