Whatever position they're in now is correct!
Seriously - I don't remember whether the knob is "keyed" to the cable, but I suspect it's not. The only way to change the orientation is to twist the cable a bit. A slightly hit-or-miss propostion, since you'll have to go way past the position you want and let it spring back.
If the knob
is keyed to the housing, it's just a matter of loosening the nut behind the dash.