All I did was take from the a530f the /system/etc/permissions/privapp-permissions-com.sec.android.app.fm.xml file and put it into my own directory along with the hybrid radio folder and apk in the system/priv-app/ directory. I set permissions accordingly, rebooted and that's it. Files are zipped and ready. Just set permissions right. I don't even know how to push/pull files exactly so if you're rooted then it's an easy deal.
Oh I used fx file explorer. I also hit "symlink" when I copied the folder with the apk. So just reboot and there was the app ready to go.
Enjoy, Canada! Should work generally the same on Samsung devices I would think. No expert but seems like it should.