How do I add an Avionic Device to my aircraft profile? Once you have logged into the site you will navigate to Aircraft Details: Once at aircraft details, you will navigate to the tail you choose to add avionic devices via the VIEW DETAILS link: Once you have either created your tail or are viewing the details of an existing tail you will click on ADD NEW AVIONIC: You will then fill out the required details and hit save: Note – A system ID is required for all applicable Garmin avionics. You can find out where your System ID can be found by visiting our support page. System ID is not required for GNC and Avidyne IFD models. Once all the information is entered you are all set to purchase your databases.