1. rstark18's Avatar
    I use the line out (30 pin connector) to plug into my car stereo. On my 3G, once the 30 pin connector was plugged in, all volume control was done through the head unit. Now with iP4 OR iOS4 (I don't know which one) the head unit controls the volume as normal but the volume buttons on the phone also control volume output. Not sure if I like this.
    06-29-2010 02:56 PM
  2. BreakingKayfabe's Avatar
    What controlled the output volume of the actual phone itself before?

    I know this is apples/oranges, but I use an aux jack. When plugged in
    the output volume on my ipod/iphone was always controlled through
    the ipod itself. The head units controlled the volume of my audio in
    my truck.

    So what you're saying is that yours is essentially working the same
    as mine is, right?
    06-29-2010 03:27 PM
  3. rstark18's Avatar
    What controlled the output volume of the actual phone itself before?

    So what you're saying is that yours is essentially working the same
    as mine is, right?
    BTW this is happening with Bluetooth Streaming also.
    Before the volume was controlled via head unit only as it should be with any line out device so that the signal does not get double amped. So yes it is working as if it is connected to the headphone jack.
    06-29-2010 03:40 PM
  4. BreakingKayfabe's Avatar
    I think it's more of a hardware issue than a software issue then. It's basically working like
    mine does when it's just connected to the auxilary jack. It shouldn't be.
    06-29-2010 04:35 PM
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