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Only 3 working speakers gen 2

Discussion in 'Gen 2 Prius Audio and Electronics' started by Hairless_Hero, Apr 21, 2019.

  1. Hairless_Hero

    Hairless_Hero Junior Member

    Joined:
    Apr 21, 2019
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    Location:
    Georgia, USA
    Vehicle:
    2008 Prius
    Model:
    N/A
    Gen 2 148K Base. Since purchasing the car (2 weeks ago) only 3 speakers work (2 tweeters, and 1 drivers side door speaker). Today I swapped it with another unit from a Gen 2 that I got at a junk yard. No fix. The back of the head units was slightly different but all of the connections fit. My Unit is Unit A and Unit B is the salvage unit (the photo of A was pulled from Youtube, I didn't take any photos of my unit when it was out). I have adjusted the fade and balance to confirm sound is only coming from three speakers. What should I do? I would like to avoid paying someone a diagnostic fee if possible.

     
  2. dolj

    dolj Senior Member

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    I would have swapped the speaker first, or at least tested it. If the speaker is ok, I would have checked the wiring back to the head unit. Would that be something you could investigate.
     
  3. Hairless_Hero

    Hairless_Hero Junior Member

    Joined:
    Apr 21, 2019
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    Location:
    Georgia, USA
    Vehicle:
    2008 Prius
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    N/A
    I plan to test the speakers when I figure out what to do to test them. I had read the pre-amps inside the (HU) head unit could have gone bad that’s why i started there.
     
  4. egg_salad

    egg_salad Active Member

    Joined:
    Oct 27, 2015
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    Location:
    Las Vegas, NV
    Vehicle:
    2008 Prius
    Model:
    Base
    Yeah, 12-year old Japanese speakers fail at an alarming rate.