MK2 golf gti dash removal/wiring problem

[borax]

Hi,

i have just taken the dash out of my MK2 golf gti CE2, to replace matrix and general squeak issues. When i pulled the dash off there was one black cable that i couldn't find a break in so i just cut it. I have now put it all back together (mostly) and can i find the other end of the black cable? can i f*k!

Anyway, i have taken a picture of the end i can find. It comes from bulkhead/inner arch area in a conduit with a thick brown wire, the other end cant be too far away?

Incidentally the MFA and rev counter aren't working, might be another issue, picture of wires below

[borax]

https://www.dropbox.com/s/2ucgdrepgtked2d/2014-12-08%2018.35.57.jpg?dl=0

[ritmo]

is this not the wire that connects to the back of the interior light switch located in the door jamb?