Your question is more troublesome. I have the same problem as you. Don't take out the long core at the audio interface. That socket is useless. The stereo is broken. First, you have to remove the panel together with the lotus socket. Use hard steel wire. Or a thick needle. Eject the long core from the back of the slot. Reinstall the socket panel. Find another DVD to connect the AV cable of the TV. Cut a piece and connect it with a broken horn wire, and the problem will be solved.
Inside the speaker? Is it in the box or the horn diaphragm? If it is in the box, please remove the speaker and replace it. If it's in the diaphragm. It's over. We can only buy new ones. There's nothing anyone can do.