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-06 head unit upgrade, disturbance noise over RCA

Discussion in 'Gen 2 Prius Audio and Electronics' started by MiRoXFin, Nov 7, 2021.

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  1. MiRoXFin

    MiRoXFin Junior Member

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    Hi! I installed an aftermarket head unit, ran 6-channel rca lines and speaker wires to the front doors. There is these annoying static distortion noises playing through the speakers when radio is on and amp is also on. Without rcas there isn't any noise. Is this common or is my wiring bad?
     
    #1 MiRoXFin, Nov 7, 2021
  2. mr_guy_mann

    mr_guy_mann Senior Member

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    Sounds like you might have a ground loop problem between the head unit and amp. The "lazy" way to deal with that is to get RCA isolation transformers. People who know more / care more about audio gear probably have better solutions. (That ain't me.)

    Posted via the PriusChat mobile app.
     
    #2 mr_guy_mann, Nov 15, 2021
  3. MiRoXFin

    MiRoXFin Junior Member

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    Most of the noise was removed when i grounded the rca "minus" to the body of the car. There still is some but I can live with that. Next is going to be some sound deadening ;)
     
    #3 MiRoXFin, Nov 16, 2021
  4. Another

    Another Senior Member

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    RCA ground loop transformer US$10
    Amazon B077Y5DLBB

     
    #4 Another, Nov 16, 2021
  5. MiRoXFin

    MiRoXFin Junior Member

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    I've tried a "four connect" branded ground loop isolator and that didn't work..
     
    #5 MiRoXFin, Nov 16, 2021
    Last edited: Nov 16, 2021
  6. Another

    Another Senior Member

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    Maybe problem is in speaker cable
     
    #6 Another, Nov 16, 2021
  7. MiRoXFin

    MiRoXFin Junior Member

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    Yeah it must be.. Basicly everything else is done. I'll have to look into that at some point, thanks!
     
    #7 MiRoXFin, Nov 16, 2021
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