Major JBL stereo upgrade but keeping stock HU

Discussion in 'Gen 3 Prius Audio and Electronics' started by UNCLBONZ, Oct 18, 2020.

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  1. UNCLBONZ

    UNCLBONZ Member

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    Something is not right. You shouldn't have to turn the gain ALL the way down to eliminate the noise.
     
    #261 UNCLBONZ, Nov 9, 2022
  2. audiodave

    audiodave Active Member

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    If I plug my phone into the aux on the deck and try to charge it noise is different and waaaay louder.
    Unplug the charger and it's just the usual high whine.
    Was thinking of trying old-school filters on the power line to the deck and processor.
    Posted via the PriusChat mobile app.
     
    #262 audiodave, Nov 11, 2022
  3. audiodave

    audiodave Active Member

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    Giving this a try. Screenshot_20221112-105304.jpeg

    Posted via the PriusChat mobile app.
     
    #263 audiodave, Nov 12, 2022
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  4. UNCLBONZ

    UNCLBONZ Member

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    For $17.00 what could it hurt to try. Please let us know how you make out
     
    #264 UNCLBONZ, Nov 14, 2022
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  5. audiodave

    audiodave Active Member

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    What I've noticed the noise gets worse after things warm up . So I need to check it after the battery and car have been used.
    Posted via the PriusChat mobile app.
     
    #265 audiodave, Nov 16, 2022
  6. UNCLBONZ

    UNCLBONZ Member

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    That's very strange that it gets worse after the engine is warm. Don't know why it would make any difference????
     
    #266 UNCLBONZ, Nov 21, 2022
  7. AzusaPrius

    AzusaPrius Senior Member

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    After looking at your list and looking at last post, I do not see anything mentioned about using RCA sound isolators.

    You do not need those power isolators.
    Try the RCA type and you will be happy.

    I did not look through the whole thread but if you are still having issues its because you have not tried RCA isolators.
     
    #267 AzusaPrius, Nov 21, 2022
  8. audiodave

    audiodave Active Member

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    My rcas only go from my processor to the amp. Less then 2ft long. No rcas go from the deck to the back. Still think of an issue?
    Posted via the PriusChat mobile app.
     
    #268 audiodave, Nov 24, 2022
  9. audiodave

    audiodave Active Member

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    The battery temp not the engine.
    Posted via the PriusChat mobile app.
     
    #269 audiodave, Nov 24, 2022
  10. AzusaPrius

    AzusaPrius Senior Member

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    @audiodave

    Are you using the stock head unit or aftermarket unit?

    Not sure if your gen prius runs its HV battery orange cable on passenger side but never run audio cables next to the orange cable.

    When hooking up your 4ch amp did you rewire all the speakers directly to the amp?
     
    #270 AzusaPrius, Nov 24, 2022
  11. audiodave

    audiodave Active Member

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    It's a Alpine deck and the speakers (separates) are run directly to the amp. I tried moving the processor once further back l, all the way to the back of the car and it didn't help. Orange battery wire is run on the driver's side. My Ai-net cable is run on the passenger and it's the only cable run from the deck. Trying a new cable on top of the upholstery didn't help.

    Posted via the PriusChat mobile app.
     
    #271 audiodave, Nov 26, 2022
  12. audiodave

    audiodave Active Member

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    With a ipod plugged straight into the amp it's quiet. iPod just laying back there with a cheap cord.
    Posted via the PriusChat mobile app.
     
    #272 audiodave, Nov 26, 2022
  13. UNCLBONZ

    UNCLBONZ Member

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    Dave, You have quite a conundrum going on here . Never heard of it being so difficult to isolate the noise in a system before.
     
    #273 UNCLBONZ, Nov 28, 2022
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  14. audiodave

    audiodave Active Member

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    Right lol
    Posted via the PriusChat mobile app.
     
    #274 audiodave, Nov 28, 2022
  15. audiodave

    audiodave Active Member

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    Tried the second filter on the processor and changer, still no change! Have have them powered to the amp power and ground. Amp is hooked directly to the 12 volt.
    Posted via the PriusChat mobile app.
     
    #275 audiodave, Dec 4, 2022
  16. audiodave

    audiodave Active Member

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    Tried a different filter from a yold deck on the ignition wire to the deck and still no difference.
    Posted via the PriusChat mobile app.
     
    #276 audiodave, Dec 22, 2022
  17. UNCLBONZ

    UNCLBONZ Member

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    Seems like you have replaced each jumper and ground wire and still have the interference noise. That must mean one of your components in the system is bad. Nothing else it could be. you'll have to go thru them one at a time to see which one is bad . I don't envy you
     
    #277 UNCLBONZ, Dec 23, 2022
  18. audiodave

    audiodave Active Member

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    Im going to try the iPod directly into the amp again to make sure it's totally quiet. Maybe something with the processor. Two different decks had the issue. The processor is the only thing if the iPod directly into the amp is quiet.

    Posted via the PriusChat mobile app.
     
    #278 audiodave, Dec 23, 2022
  19. UNCLBONZ

    UNCLBONZ Member

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    Dave, Did you have an opportunity to check out the processor and if so what happened
     
    #279 UNCLBONZ, Feb 16, 2023
  20. audiodave

    audiodave Active Member

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    The solder joints all looked good inside the processor. I haven't retried the iPod and still at a loss with this bs. Lol
    Posted via the PriusChat mobile app.
     
    #280 audiodave, Feb 17, 2023
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