Buzzing noise from car speakers

Discussion in 'Electronics' started by Parnicalnrd, Jul 20, 2017.

  1. Parnicalnrd

    Parnicalnrd New Member

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    Car:
    Mercedes w163
    I have an aftermarket mp 5 in my car fitted with original iso connector and i have a buzzing noise from the speaker only when the engine is on.Can anybody help me?
     
  2. bazzabear

    bazzabear Hardcore MB Enthusiast

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    Car:
    2013 C63 estate
    Does it change pitch with the revs of the engine?
     
  3. OP
    OP
    Parnicalnrd

    Parnicalnrd New Member

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    Car:
    Mercedes w163
    No.the noise starts when i turn the key on the phase 2!
     
  4. bazzabear

    bazzabear Hardcore MB Enthusiast

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    Hmm, not sure then. I suspected it was interference through the aerial, but that usually changes with engine revs so it's really obvious.
     
  5. KillerHERTZ

    KillerHERTZ Administrator Staff Member

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    Possibly a dodgy earth somewhere...
     
  6. OP
    OP
    Parnicalnrd

    Parnicalnrd New Member

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    Car:
    Mercedes w163
    It changes with the revs as well now
     
  7. grober

    grober MB Club Veteran

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  8. OP
    OP
    Parnicalnrd

    Parnicalnrd New Member

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    Jul 14, 2017
    Car:
    Mercedes w163
    I don't have any amp connected and the ground loop has rca inputs and my only rca is the reverse camera one
     
  9. bob6600

    bob6600 MB Club Veteran

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    I would guess at this.
     
    Last edited: Jul 22, 2017

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