Problems with Waeco MT 150 in the Audi 80 B3

moin! I have a small problem with the installation of a Waeco MT 150 in an Audi 80 B3 year 1991. Lt. manual has to be done the following: “Run the yellow/blue or green/blue original line that comes from the A-pillar. Connect the grey/red line to the green/blue original line that comes from the ZV pump. Connect the yellow/blue line to the other side of the green/blue original line that comes from the driver’s door.” So if I look at the cables that come out of the A-pillar then I have unfortunately only the following colors: Brown = should mass be green/red => ??? Red/black => ??? Can one tell me which of the cables I should connect the whole now or have to use the closing function? unfortunately have no circuit diagram to look at this… Can I connect my two above-mentioned cables of the MT 150 to the two cables with a cutting connector which can also be connected to the two cables. i get out of me? Somehow the instruction that got to the Waeco didn’t match what really is there :-(((MfG WiEcZo