Install SSL on proxy domains?

Hi So I'm moving from a reseller to a cPanel licence and I have verified the licence and all that, but I'm having an issue. So the Domain is fully over to the new cPanel but I need my "cp.xxxxxxx.xx.xx" domain to be SSL verified to use third-party applications for automation. So according to my SSL Hosts, my www.xxxxxxx.xx.xx is verified for SSL but not my webdisk, webmail and cp. Any idea on how to do this? I have attempted to use AutoSSL for this and still no change at all Any help is appreciated.