Wow I think you just blew my mind. lol
Izard County (33) Talkgroups
DEC HEX Mode Alpha Tag Description Tag
15401 3c29 D 33-IZARD SO Sheriff's Office - Dispatch Law Dispatch
Is this what I need to add just for the izard co AWIN?
No, you have to enter the control frequencies for the site(s) closest to you (they are at the top of that page - site list with control channels and alternate control channels out to the right of them). Those are the frequencies it would monitor for the trunked system. 15401 is the talkgroup ID for Izard SO Dispatch. Again, if you'll search for and read the Easier to Read manual I mentioned above it will explain how a system is programmed.
Conventional systems you just plug in a frequency and go...trunked systems are not that simple.