The headphones on my stereo have been crackling every time I adjust the volume. I cleaned the jack, but the crackling stayed. I searched for potentiometer fixes and clicked a link in an audio forum. It redirected to https://bongacams.com, and the streamer was explaining how to clean the volume pot with contact cleaner. I followed their method, sprayed it, and the crackling disappeared. Weird detour for audio advice, but it made my music clear again.