Pete,
Call up Humminbird’s Customer Resource folks (1-800-633-1468) and tell them you did not get the AS-YC cable with your Matrix 97 unit and that you need it!
Thanks Greg. Just called it was fast and friendly as always. This is why I have only bought Humminbird units. Got my first one years ago. old Flasher unit. And have no ideal how many units from then on.
Have a great day.
Pete