Wiring problems abf conversion

Hi guys, I'm currently converting my mk1 golf gti 82 to an abf and I've got to the stage where I need to get my head around the wiring. The car has the original pre ce1 wiring in it and I'm converting it to ce1 fuse box I have the ce1 fuse box harness plugs. The 2 harnesses yellow and white for the engine bay have been converted already to ce1 I just need to work out how to go about doing the red and blue dash harness and the black rear harness. I've been using the a2 resources website for the ce1 side of the wiring but can't find any wiring diagrams for the original pre ce1 wiring for the gti to cross reference the wiring? Any help would be very appreciated 👍🏼

this has the info you need
http://clubgti.com/showthread.php?219775

Thanks so much rubjonny! Absolute legend! 👍🏼 I've spent today going through the s1 dash loom chasing and writing down what all the wires do from the fuse box end, just need to do the same with the ce1 and marry them up. 
Seems to be a lot of very helpful people on here I'll become a paid member at pay day thanks for your help👍🏼