this may differ on your model, but this is how it is on my 83 300SD(same engine i think). The bowden cable is attached dirctly to your trottle linkage, it should be one of the only cables,with a blue(or white i don't remember) rubberish plastic bolt that can be turned out or in. I beleive to soften the shifting, you want to turn this cable out. Try a little bit at a time, if you mess with it too much your car will start out in 3rd(NOT good) hope this helps
R

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83 300SD.......sold
96 integra SE....sold
99 a4 quattro....sold
2001 IS300.......sold
2002 330i.........current.
2004 highlander limited....current.