For about 6 months i could not figure out what was wrong with my home stereo, i tried several times and nothing, i figured the receiver may have quit and had been looking online for new ones. So, today i tried again, one last time, made sure every cord was connected right even tried the radio, hmm no sound. Somehow i spotted a red dot inside the headphone jack. First thing i thought was LIGHT BRIGHT. I knew something foreign was in the jack as it was inside about 1/4"and fit perfectly, so i heated up a pin and sunk it into the unknown object. Well my first thought was right. frickin' light bright piece. Kids! I would have thought it had to be metal to go to headphones, nope! The stereo now works great.