Misplaced my wiring diagram I made whilst I was extending some wiring in the engine bay - well more like custom harness now - have the manufacturer wiring diagrams but they can be a little gobbledegook!

Need to know how the lives link between the multiplugs in the engine bay ( mine are grey and brown )
They link via the ICV and also split/join elsewhere but for the life of me can't remember exactly how.

Version 5 STI

Help needed urgently!!!!