Hey, replying a little late. I noticed this bug too and tried to go and fix it myself. I extracted CSP's .BANK files and tried to edit the generic windscreen wiper sounds to have a fade in and out, to prevent the popping. This didn't work. I tried a bunch of cars and most of them have completely different wiper sounds from the generic ones and retain the extremely loud audio pop. I also noticed when extracting the .BANK file that it is missing a lot of the files that are noted in the GUID list in the Assetto Corsa/Extensions/sfx. In the GUID list there is a handful of other windscreen wiper sounds, but upon extracting them with FMOD bank tools, I only have a few generic files. Could someone point me in the right direction?