If the music potentiometer of the stroller is broken, buy a motor and replace it. Buy one with the right size and voltage, and then replace it. Then, it is best to find a soldering iron on the stroller and remove it by soldering. I'm afraid there will be no music. Of course, we can play music, but there is a little less emotion. If you go, you can make a short phone call like this. How can it be short-term? Simple.