Files are usually saved in .ogg format to be compatible with the SCS Software engine. :
A manifest.sii file is required to provide the mod's name, version (v0.0.0.45), and author information. SERBIAN VOICE NAVIGATION V0.0.0.45 BETA
If you are looking to install or modify this specific build: Files are usually saved in
Definition files ( .sii ) link the specific audio triggers (like GPS "turn left") to your custom Serbian audio files. : SERBIAN VOICE NAVIGATION V0.0.0.45 BETA