my speakers are not working for my stereo and for the door buzzer.

Hi Bpentz! It's unlikley that all the speakers failed at the same time. There's is probably a problem with the amplifier on the stereo has failed or ... well i was going to say that the speaker feeds got impinged somehow, but again it's unlikely that whatever could happen there would happen to all speakers at once. Have the output o fth eradio tested first and go from there. Good luck!