Non-Beats Headset whistle/buzz on Rezound?

Has anybody used any headphones besides Beats and noticed a whistle or buzz?

The reason I ask is b/c when I plug it into my car (old fashioned headphone jack to tape adapter), I get a pretty noticeable high pitched buzz that's clearly magnified when data is being transferred. It's a lot louder than I ever heard on my Bionic, pre or post leak, and I never had the problem on any previous phones - same car, connector, etc. When the Beats headphones are in, it's perfect.

It is an old car and an old tape adapter, so maybe it's just the perfect storm of all of that. And it's not a huge deal either as most of the music I listen to doesn't have many quiet parts, but I'm just curious if anybody else has noticed it.