Overview
In this guide I will be showing you how to insert any music you want into the game’s grammaphone so it can be played on the sub.
Get the music you want to use.
Find the msic you want to play on your sub. I chose the music from Mafia II as it kind of fits the game’s timeframe. The music needs to be in .mp3 format to work properly.
Putting the music in the right folder.
Move your music into the gramophone folder located in the game’s data folder. The path is as follows Silent Hunter Wolves of the Pacific->Data->Sound->Gramophone. Paste all the music in here and you are done.