Hi Colmana,
You would probably need to set it up then fly. Configure your PilotAware ‘Mode C/S Alert’ to Mode CS without the filter, and if it’s a Mode S transponder, also change the Hex ID in your PAW to the default (last 6 characters of the MAC address). That should stop it filtering your transponder and it should appear on your Nav screen once interrogated. Can’t guarantee the accuracy of the report though.
Let us know how you get on, and don’t forget to set it back to the correct Hex ID and Mode CS plus filter afterwards.
Regards
Peter