The Authentic sound runs from patch 1.30 and 1.31 on the following vehicles: All SCS standard trucks!  Features:  PRO quality  100% Audio recorded by me  Recorded exterior and interior sound  Fully standalone sounds  Includes real sounds of switches in the interior, gearbox, pneumatic, valves dryers, and electro-peumatic signal, and more other sounds.. If you like my work I will develop it in the next version Credits: dimant