Funfox694

Before i start i want to say im not trying to accomplish anything illegal i have the proper access and system keys to access the system what i dont have is the know how. I am helping out the radio guy who is a good friend of mine from one of my local depts program in some interop stuff they have for the state p25 system they currenty use a 3600 system and it works fine but when he trys to program the P25 system in it does not follow it. Oddly we tried a process i was told about from a friend and attatched the talkgroup scanlist to a conventional channel and when it scanned it works we hear it clear as day but when switched back over to the actual talkgroup and onto the system it does not open up the speaker for any audio and doesnt even blink the red light like it is seing the tranmissions. FYI we can see all the site info and the sites rssi so i know its affiliating i dont know what setting i am missing but would be very greatful anybody who can help me.
Thanks,
Bob