Select from the voice navigation dropdown. Click Preview (this activates the sound in the background).
: The trailer engine "beeps" and starts up immediately upon coupling. REEFER TRAILER SOUND ADDON V1.0.8 1.46
: Using the "Force enable" workaround does not support the initial startup and beep sound effects. Select from the voice navigation dropdown
: Other road or trailer tire sound mods must be disabled to prevent conflicts. Reefer trailer sound addon for ETS2 - Steam Community REEFER TRAILER SOUND ADDON V1.0.8 1.46