Mk5 XR3i there is a blue 8 pin multiplug that appears to connect from the main car loom to the engine loom, it has a Red(Pos) & Black(neg) and 6 other wires Blk/Grn, Brn/Grn,cant remember the rest off hand, I've looked thru the wiring diagrmas in the Haynes but cant seem to identify it, I need to know what the wires are connected to so I can cut the connector and lable the wires to sell the loom and also incase I need them when I fit my new loom.

Can anyone help?