Hi folks here is a working video for Gear linkage adjustment although I can't claim fame to making it
Mk4, mk5, shifter adjustment procedure
The factory service manual says that on the mk4 and newer, you have to remove the center console and lock the shifter knob to adjust the shifter cables, but this is not the case certainly for MK4 Golf platform cars. On the mk4 you should have enough room to reach in there.
Below is a mk4 shifter assembly (2002 model linkage shown earlier versions