For version 1.43, the feature "Skutečné zvuky provozu AI" (Real AI Traffic Sounds) is a popular modification that replaces the default engine sounds of all AI vehicles with authentic recordings.
: To further enhance the "real traffic" feel, you can use the Real Traffic Density mod by Cip, which adjusts how many vehicles spawn based on the time of day. ETS2 V1.43 Indonesia Mods: Download & Guide - Ftp SKUTEČNÉ ZVUKY PROVOZU AI 1.43
: This mod provides unique, realistic FMOD sounds for every car, SUV, truck, and bus in the game. For version 1
: Extract the .scs or .zip file into your Documents > Euro Truck Simulator 2 > mod folder. For version 1.43