USB drive mounting via remote access

I maintain some servers via VNC (over my internal network, firewall rules prevent remote connections). In the past, I would VNC in as root and I had all the control I needed.  I am trying to get away from root over VNC.  I discovered that a user account cannot mount a USB drive, no permissions. This is true for a USB stick, USB connected HD, and a USB connected CD burner (K3b does not even see the drive). I am assuming this is an SELinux feature.  I want the user I have set up for VNC access (that is also in the Wheel group) to be able to perform this function.  I don't want to have to command line sudo mount, nor can I figure out what k3b would need. I have been googling this problem for a few days, but either my search foo is weak (nothing new there), or there is really no information out there on this. So if this IS an SELinux feature, can someone help me with what I would need as a policy rule? Oh, right now I am doing this for Fedora 29-armfhp beta.  I will also be doing it for Centos7-armfhp. thanks