every time I plug the USBC to 3.5mm adapter into my phone this pops up and like. what the fuck do you mean. complete what action. is it triggering a voice command prompt? stop, I just want to listen to my music.
@pendell In my case the problem was a wire inside the cable was loose and kept producing just the right electrical signal to be detected as a button-press. I've also seen that happen if the 3.5mm isn't plugged in tightly, but again, my experience is ages-old now (talking like iPhone 3G and Android 2.x era).
If your headphone cable is in good shape, and you're sure it's plugged in securely, only other thing I can think is make sure the 3.5mm is snug in the adapter before you plug in the USB end.
@wildweasel that's lame. I wonder if my headphones having a TRS plug instead of TRRS has something to do with it.