This problem started all of the sudden last Monday (I am using an iPhone 5 that I got last October, and I've been using the Apple headphones that came with the phone). It doesn't matter which song I'm listening to...the song would randomly pause or skip ahead or even skip to the next song. Sometimes my phone will start playing a song by itself. Also, Siri would randomly activate, so I turned Siri off. Now voice control randomly activates, which is something I never use. And the worst thing is that my calls would sometime randomly disconnect, just as if I pressed the "end" button to hang up, except of course I didn't press anything. I noticed that none of these problems occur if I don't use headphones, so I *think* it's related to my headphones. Any troubleshooting tips? If my headphones are defective, do you think Apple will replace them under warranty?