86 evinrude trim question

[pbtbreakingpoint]

I am trying to find a trim wiring harness for my e90txcdc motor.

I guess there are three styles of these harnesses the difference being the number of pins on the console end of the cables.

Could anyone give me some info on what the difference between the number of pins makes?

Thanks

[boats.net]

Trim harness for 1976-1995 is choice of
0175898 20ft
0583205 28ft
0583207 33ft