So I finally gave up my Gen 1 Droid X and got the S4. Love the phone and I am sure it will last for years. Problem though. DAILY I use my phone for NAV and as the Music source in my car. I bought a adapter that connects my phone onto my Cars Bose system and it has always been flawless and CRYSTAL Clear. Until the S4 I get Buzzing and even that old fashioned Whirring sound where you can here it actually run with the engine like an old AM radio. When I get THAT to stop in between every single song or if a notification sound plays I get a LOUD popping sound. Pro player and car dock ultra is what I use like I have for years with no problems. HUGE disappointment especially for a phone that is supposed to be the best of the best. Any Ideas?