How to make the object "precipitation" in the world editor of beamng emit sound?

[sainan-zhang]

I want to make a rain scene. But I found that even if I add the object "precipitation" in the world editor, it only shows rain, but not accompanied by the sound of rain. Can you give me some suggestions? I also downloaded a flood mod that can add rain and its sound. But it needs to be set manually after the scene is loaded, which makes the game a terrible experience. I wonder if there is a way to call this flood mod and set the rain parameters before scene loading through Beamngpy, so that I can avoid manual setting. Can you help me?
Looking forward to your reply! Thanks very much!