I updated everything and the bottom line (line 4) still says TSYS when stopped on an active object while scanning a trunk system. Did I misunderstand or am I doing something wrong?
Did you activated the feature by setting the "Show RadioID" option to "Yes"?. It's under the FUNC + GLOB near the bottom of the list. (You can press FUNC + down arrow to jump to the bottom.)
There's also a possibility that you have been catching transmissions midway through, which like the included FAQ for the update mentions, it might not work in those cases. Check out that FAQ for more detailed info.