@CDTbolt10033 regarding the FleetConnect DT3 not trunk tracking. I can offer a suggestion.
In your 996P2/325P2 programming for MotoTRBO Trunk, increase the system Hold Time to 10 sec. I know that seems excessive, but try it and see what your results are.
Uniden's seem a bit on the slow side to "latch on" for DT3. You will hear voice once you have the proper LCN's and Colour Code. This helped me trunk track the Toronto City Services and Air Canada DT3 systems. I have since decreased it down to 5 sec Hold Time.
Thank you for your Fire Department discoveries, you are populating the system nicely.