How come with the Y cables you have to plug the thing in the opposite direction:confused:
Not sure what you mean, is can only be connected 1 way. The VEX “Y” Cable is Keyed on only one end which has the Pins for plugging into the Microcontroller. The other 2 ends are not Keyed and are Sockets. The Black wire on the Y Cable must mate with the Black wire on your Vex Motor/Servo.