One to one on both your radios. On the 6 pin use the middle 4.
I wasn't clear. On the 6 pin cable it's 1-1 using all six(480). On the D700 it's 4pin on one end and six on the other. Disregard the 2 outer ones on the 6 pin end and wire the 4 middle the same as the 4 pin end.
Sometimes brevity bites me in the rear.