I did a search and everyone seems to have problems with iphone casing interference with speakers or TVs when placed next to them. However, I didn't see much on interference being heard through headphones. I am using it as an iPod for the first time and the buzzing is coming through LOUD. Comes on every five min. Is this my hardware or common iPhone problem. I am using noise canceling Audio Techinca headphones. Is it because of noise canceling? Your thoughts?