All radios have SSL with the SonicPanel. Shoutcast v1, v2.5, v2.6 and IceCast v2. Each SonicPanel user/client has the SSL radio player URL information on their SonicPanel, on the main page 'SSL Connections' tab or 'SSL Connections' link on the left menu.
If you didnt set the SSL certificate for the server, you need to set your hostname and SSL first from the root SP. >> https://kb.sonicpanel.com/article.php?id=46