Air Horse Connect Sound Script v 1.0
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This global script adds sounds for connecting and disconnecting compressed air hoses to the game. If the compressed air hoses of a trailer are connected to a tractor, a hissing sound is heard and you can hear the compressed air flowing into the trailer. When removing the compressed air hoses, you can also hear a hissing sound. If a trailer mod has not (yet) installed dynamic hoses, there is no hissing sound. This also applies to trailers that only have hydraulic hoses, as they are braked using hydraulic pressure instead of air pressure. In the modDesc, the volume of the coupling and uncoupling hissing sounds can be individually adjusted (see screenshot in the images area).