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Left dash speaker crackle???

Discussion in 'Model S: User Interface' started by Alysashley79, Feb 25, 2014.

  1. Alysashley79

    Alysashley79 Member

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    Seattle, WA
    My car is at service for a few minor things one of them was a left dash speaker crackle that just randomly does it. My service manager called me today and said that they think it's happening when a text message is coming through or just about to. And want me to bring my phone in to test it. I said I would but when I asked them if it is the problem what can be done to fix it I was told nothing really it's the phone interfering with the internet chip in hitherto car. Anyone else had this problem. I LOVE my service team here. So I'm not trying to bad mouth them just trying to see if there is a work around that someone else may have found. I don't want to live with the crackle and I don't have the option of changing phone carriers.
     
  2. Snosrep

    Snosrep Member

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    I have noticed the same thing. The crackle seems to occur when my phone is receiving data. I have also noticed that it is worse if my phone is sitting in the tray below the monitor. The noise occurs quite a bit less if I place my phone in the center console at the back near the USB jacks, away from the monitor.
     
  3. pgiralt

    pgiralt Active Member

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    Does it sound something like this?

    Cingular GSM Speaker Interference - YouTube

    If so, this is typically GSM interference with electrical devices and means that your phone is close to one of the electrical components like the audio source or amplifier that goes to that speaker. Where do you put your phone when you hear it?
     
  4. Argelius

    Argelius Member

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    Wow. I've been wondering about this same issue. I didn't think it was related to the phone since the kind of "crackle" I hear coming from the speaker is different from what I have heard before when a cellphone is placed near a speaker (such as near computer desktop speakers). Anyway, interesting to hear others have heard the same thing (and it's only ever the left front dash speaker)...
     
  5. Reed

    Reed Member

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    I noticed this about 3 minutes after owning the car... Annoying given I spent more for the upgraded stereo. The noise is the loudest when phone is placed in the tray below the main screen. It is quieter but still noticeable when placed on the floor between the two front seats.

    The noise can definitely be improved but unfortunately it usually requires a significant hardware redesign. Essentially either the amplifier, analog circuit, or some kind of receiver is getting interference from the phone. It is a delicate line between blocking the phone interference within the car stereo and preventing the car stereo from working properly (receive data and radio signals).

    Can they do better? Yes. Will your car get an upgrade to fix this? Likely not. This seems more like it should be something Tesla should address in future vehicles.

    one thing that may improve the situation is the drop-in center console. It won't fix the under screen tray but may give you a place to set the phone that is far enough away from the analog circuitry to eliminate the noise.
     
  6. Kraken

    Kraken Member

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    Cell phone interference is common in all car radios. What radio are you listening to at the time? Am, fm, xm, Internet, USB? It's the same philosophy that has lead to bans of cell phone usage on planes (although, that's a bit over the top.). I used to hear it all the time back in the day in an accura integra. Might also be more common if you're on Internet radio and you have AT&T as your cell phone carrier. Unfortunately, someone smarter than I might know otherwise, but. Assume this is pretty tough to fully prevent.

    - - - Updated - - -

    The pocket on the front of the seat between your legs and the cup holders that aren't great for cups are other good cell phone spots.
     
  7. Alysashley79

    Alysashley79 Member

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    Seattle, WA
    I picked my car up from service yesterday after speaking with them they did in fact confirm that it is our phones that are causing the crackle. More specifically certain carriers reacting against the card in our he cars. Apparently the techs are working on something to out a barrier between the two but in the he mean time there really isn't anything they can do. Even the console doesn't really help.
     

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