Hi there, I'm sure you don't realize it, but you are essentially asking, on a public forum, for help obtaining
a "hacking tool."
With some frequency, folks involved in some way as first responders, have and possibly have acquired an old MOTO
maybe even at their own expense because they want their own radio to use on a P25 trunking system. Someone may
have told you this is ok and just get it done. However, that advice opens you up to potential legal problems including
criminal charges. Public entities who own these systems can be very protective of them. At a minimum, they may
brick your radio even if you program it.
The advice you will get here is to "go through channels." Somewhere exists a system adminsitrator and/or some private radio shop
that your entity works with. Go through them.
IF you are trying to receive only, again there are hazards. Read well the threads on here before trying that.
It comes down to program it an official/departmentally handled way, or get a scanner.