Phil,
The T5 is a 5 speed. So, not knowing exactly what you have I'll show you what I adjust on my T5 ('86 bell crank type bellhousing). Maybe it will help, maybe not.
Basically there are adjuster nuts on the end of the cable You loosen them and rotate the nuts to move the cable sheath. One nut brings the sheathing to the correct position, the other is to tighten down the sheath at the desired position.
One last note, I had to move my cable outward for crossmember clearance. If you have the style I have your cable will bolt directly to the bellhousing, not an extension bracket like I have.