ISSUE WITH RADIO

Discussion in 'Prius v Main Forum' started by djasonw, Mar 20, 2025.

  1. djasonw

    djasonw Active Member

    Joined:
    Jul 13, 2004
    958
    119
    0
    Location:
    Coconut Creek, FL
    Vehicle:
    2004 Prius
    Model:
    N/A
    I have an odd issue which I can't figure out. I have a 2013 Prius v with 233k miles. Car runs great but all of a sudden I'm not hearing any sound from the rear speakers. I checked the fade setting (obvious first thing to do). I can't imagine the rear speakers just failing. The sound from the front speakers work fine. Can anyone make any suggestions as to what I should check? Thanks.


    iPhone ?
     
  2. Air_Boss

    Air_Boss Senior Member

    Joined:
    Jun 2, 2012
    4,124
    1,146
    0
    Location:
    New Yawk
    Vehicle:
    2012 Prius v wagon
    Model:
    Five
    Circuit boards in the head units heat cycle and cause cracked solder joints. Had this occur with the expansion card on our 2012 v Five. Replaced with an OEM unit of more recent manufacture, which will likely fail the same way in a few more years.
     
    douglasjre, MAX2 and djasonw like this.
  3. PriusCamper

    PriusCamper Senior Member

    Joined:
    Mar 3, 2012
    11,838
    4,796
    0
    Location:
    Pacific Northwest, USA
    Vehicle:
    2007 Prius
    Model:
    Two
    Do you have the upgraded version with an amplifier under the front passenger seat? Or just that standard version with no amplifier under the seat?
     
    djasonw likes this.
  4. djasonw

    djasonw Active Member

    Joined:
    Jul 13, 2004
    958
    119
    0
    Location:
    Coconut Creek, FL
    Vehicle:
    2004 Prius
    Model:
    N/A
    I have the OEM. I will look into replacing the OEM head unit with a used one. I'm in no rush as I'm not an audiophile so the diminished fidelity will have to suffice.


    iPhone ?
     
    douglasjre likes this.
  5. rjparker

    rjparker Tu Humilde Sirviente

    Joined:
    Jun 6, 2008
    9,285
    5,657
    7
    Location:
    Texas Hill Country
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    If it is a 57011 the rear speakers never produced much sound and most of that is bass. I have always faded about 3/4 to rear but the dash and front door speakers dominate unless the radio source is fm hd and the song has strong bass.

    IMG_7885.jpeg
     
    Air_Boss and djasonw like this.
  6. djasonw

    djasonw Active Member

    Joined:
    Jul 13, 2004
    958
    119
    0
    Location:
    Coconut Creek, FL
    Vehicle:
    2004 Prius
    Model:
    N/A
    Sounds extremely plausible. If the vehicle was newer I'd consider investing in a head unit replacement. Thinking back, my 2004 Prius had a similar issue but there was no sound at all. I ended up using a Bose portable speaker and streamed from my phone.


    iPhone ?
     
  7. djasonw

    djasonw Active Member

    Joined:
    Jul 13, 2004
    958
    119
    0
    Location:
    Coconut Creek, FL
    Vehicle:
    2004 Prius
    Model:
    N/A
    I completely agree. Truth be told, I listen to talk radio so it's really insignificant. You are definitely spot on regarding your assessment of the rear speakers.


    iPhone ?
     
    Air_Boss likes this.
  8. PriusCamper

    PriusCamper Senior Member

    Joined:
    Mar 3, 2012
    11,838
    4,796
    0
    Location:
    Pacific Northwest, USA
    Vehicle:
    2007 Prius
    Model:
    Two
    You can also pull the door panels and confirm the two rear speakers are working with a speaker wire you're sending music through or touching a small battery to the wires to get a clicking sound.
     
    djasonw likes this.
  9. Paul Gregory

    Paul Gregory Senior Member

    Joined:
    Dec 9, 2022
    1,153
    302
    0
    Location:
    Alberta
    Vehicle:
    2024 Prius Prime
    Model:
    XSE
    I'd be testing the circuit with an ohmmeter.
     
    djasonw likes this.
  10. vvillovv

    vvillovv Senior Member

    Joined:
    Mar 19, 2013
    4,315
    1,494
    1
    Location:
    NY
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    sometimes just tapping on the door panels while the fader is full rear (in your case) and the volume is up
    Another thing you could try before finding a new head, since you're already planning that,
    pull the dash panels (just like when replacing the head) and check the speaker plugs and sockets.

    Sometimes just pulling plugs and reseating them works like magic. - same with the speakers (if you want to pull the door panels and take a closer look).

    Or ask an installer at a auto sound shop.