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  1. Thread Author  Thread Author    #1  
    SeanSolo's Avatar

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    Default Aux In Hissing!

    Love the phone but may have to return it as I get a crazy loud hissing sound when I plug in my BMW 328i. Is there a setting in the phone I can use to fix? I've had multiple iOS and Android devices over the years and it's been fine. Tried multiple cables too.
  2. #2  
    cdaq's Avatar

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    Default Re: Aux In Hissing!

    Quote Originally Posted by SeanSolo View Post
    Love the phone but may have to return it as I get a crazy loud hissing sound when I plug in my BMW 328i. Is there a setting in the phone I can use to fix? I've had multiple iOS and Android devices over the years and it's been fine. Tried multiple cables too.
    Sounds like a hardware problem, probably the headphone jack. If you can eliminate a problem with your deck/aux in, i'd try exchanging the phone.
  3. #3  
    law2010's Avatar

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    Default Re: Aux In Hissing!

    Quote Originally Posted by SeanSolo View Post
    Love the phone but may have to return it as I get a crazy loud hissing sound when I plug in my BMW 328i. Is there a setting in the phone I can use to fix? I've had multiple iOS and Android devices over the years and it's been fine. Tried multiple cables too.
    Strange. Can't you just stream via blutooth? Or could you connect it via USB? Even my Wrangler has a USB port. Your Beamer doesn't have one hidden in there somewhere?

    Posted via Android Central App
  4. #4  
    law2010's Avatar

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    Default Re: Aux In Hissing!

    Quote Originally Posted by SeanSolo View Post
    Love the phone but may have to return it as I get a crazy loud hissing sound when I plug in my BMW 328i. Is there a setting in the phone I can use to fix? I've had multiple iOS and Android devices over the years and it's been fine. Tried multiple cables too.
    Do you get a hissing sound when using headphones?

    Posted via Android Central App
  5. #5  

    Default Re: Aux In Hissing!

    Unplug the car charger, if you have one plugged in as well. Sometimes when plugged into a car AC charger and AUX, you can hear the hum of the alternator providing power to the car through AUX... or at least I have in the past. If you rev the engine, and the hum/hiss changes with the RPM... you either need to unplug AUX and use an alternate method, or unplug the AC.
  6. #6  

    Default Re: Aux In Hissing!

    It may take some work, but it's possible to get some Android devices to output unamped sound via USB: Android phones and USB DACs - Page 304
  7. Thread Author  Thread Author    #7  
    SeanSolo's Avatar

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    Default Re: Aux In Hissing!

    I have a USB ...how do I make that an audio input? I have a 2011 and it only streams calls not audio (no A2DP functionality).

    I found that if I max out the phone volume when plugged in it helps a bit.

    Posted via Android Central App
  8. #8  
    buckifvr's Avatar

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    Default Re: Aux In Hissing!

    Time to upgrade the cars head unit

    Sent from my HTC One M8 using Tapatalk
    Yesterday is but a dream, Tomorrow is but a vision, but Today well lived makes every Yesterday a dream of happiness and every Tomorrow a vision of hope.
  9. #9  

    Default Re: Aux In Hissing!

    I second the suggestion to try it while it's not charging
  10. Thread Author  Thread Author    #10  
    SeanSolo's Avatar

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    Default Re: Aux In Hissing!

    My head unit is awesome with every other phone. I have not used a car charger and it still makes those noises. I can't be the only one...tomorrow I'm going back to T-Mobile and I'll try another unit and/or another aux in cord.

    Posted via Android Central App
  11. #11  

    Default Re: Aux In Hissing!

    I have this exact same issue with my HTC One M8 for Windows too. I used my Lumia 1520 in my car since I got it without this issue but once I connected my M8 the hissing began. I thought it was the aux cable because I could use some wiggle techniques and get it to stop intermittently but it would eventually start to hiss again. Anyone have any other suggestions?
  12. #12  

    Default Re: Aux In Hissing!

    I have the same problem using a cassette adapter. It used to be ok, especially if I put the phone into airplane mode, eliminating radio noise. But I think it's gotten worse since 4.4.3 update - now the hiss makes it unusable, even in airplane mode. It's fine with headphones, so it's not a hardware problem.

    Posted via Android Central App
  13. #13  

    Default Re: Aux In Hissing!

    Unless M8 just puts out too much power for some systems to handle....

    Posted via Android Central App
  14. #14  

    Default Re: Aux In Hissing!

    If you have a case on the phone, try removing it and then plugging in the AUX cable. A lot of times the case hole around the port is too small for the jacket around the cord plug. That prevents a firm seating in the port and cause hissing, erratic sound, and lost connections. If the cord works without a case, then either remove the case every time or get a new AUX with a smaller plug jacket.

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