I am not familiar with that radio, but it may have a tune button that will allow you to initiate a tuning cycle on the LDG tuner. If so, then you'll need to purchase an Yaesu interface cable. They use to be included, but not anymore. The tuner needs 12 volts to operate and should come with a power lead to hook to your power supply, or you could scrounge up a wall wart that has proper output. It uses a 2.5x5.5mm plug. The AT-100 Pro II requires 500 mA.
The cable is nice, but is not absolutely necessary to operate the tuner.