I know it's pretty ghetto, but the receiver in my car doesn't have an audio in jack so I use my phone with one of those cassette adapters. With my 3gs and my 4 all worked perfect. The 6 is giving me a weird hum type sound when I listen to anything streaming, such as Tune-in or iheartradio. Whats odd is that I haven't noticed it happening if I listen to something I have stored on the phone itself. I thought perhaps it is because I was also charging it at the same time, but I get the hum even with the lightening cable not attached. Anyone else have a similar issue? Any thoughts on why this is happening? Thanks for reading.