InFamous Second Son - Informer Audio Message Guide
Only for the truly curious."Inner Voices" Trophy Guide
To unlock this result in InFamous Second Son we will have to find a total of 14 audio messages from the informant.
To make things easier, just destroy the neighborhood's Mobile DUP Command Center to see the location of the collectibles in that neighborhood on the map. On the map the audio messages come highlighted with the yellow folder icon. Use the phone to follow the signal received, when the indicator says that you are less than 3 meters away from the file you can retrieve it.
Important: follow the InFamous Second Son trophy guide to find out how to unlock all other trophies.
Here is a video showing the exact location of all InFamous Second Son audio messages.