Using the supplied wire: The Right terminal of the UM connector goes to terminal 2 of the controller rear terminals (solder inside to the solder tab) (This is the potentiometer feedback from the rotor)

The left terminal of the UM connector goes to terminal 3 of the controller rear terminals (solder inside to the solder tab) (This is the potentiometer feedback from the rotor)

A wire needs to go from pin 1 of the ERC CW relay to the CW (Right) switch (pin 3a) on the Yaesu controller, this is the bottom left terminal as you look from the back of the switch. This supplies 26v to the CW relay

Also a wire needs to go from pin 1 of the ERC CCW relay to the same place on the Yaesu controller right switch (pin 3a). This supplies 26v to the CCW relay

Then, Pin 4 of the CCW_aux and also from CW_aux relays both need to go to pin 3b of the switch (which is the bottom right terminal of the same switch) 

Next, pin 2 of the CCW relay goes to terminal 4 of the back of the controller. Solder to the inside tab (this supplies 26v to drive the motor left when relay is engaged)

Next pin 2 of the CW relay goes to terminal 5 of the controller, these send the output of the relay (this supplies 26v to drive the motor right when relay is engaged)

Pin 5 of the CCW_aux relay goes to terminal 7 of the controller (left limit switch cut off)

and finally, pin 5 of the CW_aux relay goes to terminal 6 on the controller (right limit switch cut off)