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Bluetooth Adapter Not Recognized by JBL Audio System (and other issues)

Discussion in 'Gen 2 Prius Audio and Electronics' started by iRunfastXC, Jan 26, 2022.

  1. iRunfastXC

    iRunfastXC Junior Member

    Joined:
    Jun 30, 2019
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    Location:
    Pennsylvania
    Vehicle:
    2004 Prius
    Model:
    Touring
    Here's a fun one, fellas.

    I bought one of those bluetooth adapters that fits into the CD changer slot on 2004-9 Prii. I've had no issues with these before—I've installed them in three other cars: Car Radio Audio Adapter Bluetooth Aux Cable Microphone Handsfree Music Interface Disc Box for Toyota Reiz/Camry/Corolla|Bluetooth Car Kit| - AliExpress

    My car is a 2004 with the JBL system and Nav, which is different than all the other cars I've installed these into, but I figured it would work. There was a DICE Electronics aux adapter plugged into the CD changer slot from a previous owner—that has always worked flawlessly. I took it out and installed the new bluetooth kit.

    Despite numerous car re-starts, the audio system never recognizes the new device. It is on, and I can connect to it via bluetooth, but the car doesn't notice it.

    Doing a little troubleshooting, I plugged the old DICE adapter back in (which has a 12-pin female slot in its wiring harness), and while the car was on, plugged the bluetooth adapter into that. Voila! My music is blaring through the speakers! HOWEVER, all the steering wheel buttons don't work now. Volume controls on the radio itself work, but inputs don't show up on the LCD display like they should. I turn off the car, turn it back on again, and the car now refuses to recognize the entire DICE system. Unplug the bluetooth adapter from the DICE wiring harness, restart the car, and the DICE system can be selected again and all controls are back to normal.

    With the bluetooth adapter plugged directly into the CD changer slot, I get the same weird activity when it comes to steering wheel buttons and volume controls. In addition, if I'm playing from the tape deck, I can't control the volume whatsoever.

    Any ideas? Kind of bizzarre. First issues I've ever had installing these kits. Does it have to do with the premium audio system? If so, how would I get around that?

    Thanks, all!
     
    #1 iRunfastXC, Jan 26, 2022
    Last edited: Jan 26, 2022
    ydpplqbd likes this.
  2. ydpplqbd

    ydpplqbd Active Member

    Joined:
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    Location:
    NJ
    Vehicle:
    2006 Prius
    Model:
    Three
    Great post. Let us all know if you get it sorted.
     
  3. yossi

    yossi Junior Member

    Joined:
    Apr 23, 2021
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    Location:
    USA
    Vehicle:
    2008 Prius
    Model:
    N/A
    what exactly does this device do? is it an alternative to using a bluetooth adapter into the aux port in the armrest console?
     
  4. Another

    Another Senior Member

    Joined:
    Jun 22, 2021
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    Location:
    Naples, Florida
    Vehicle:
    2007 Prius
    Model:
    Touring
    Looks very problematic and tiresome to install
    Much better option available for $40 on Amazon that take two minutes to get up and running with flawless operation


    TUNAI Firefly LDAC Bluetooth Receiver: High Resolution Wireless Audio Bluetooth 5.0 Adapter with Audiophile USB DAC 3.5mm AUX for Car/Home Stereo Hi Res Music Streaming; Auto On, No Charging Needed
    .
     
    ydpplqbd likes this.
  5. NoProPrius

    NoProPrius New Member

    Joined:
    Sep 15, 2023
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    Location:
    Amsterdam
    Vehicle:
    2005 Prius
    Model:
    II
    Similar issue, except no Dice...

    BT adapter plugged in , but system does not recognise it. Only sometimes if I plug/unplug it the disk changer option appears....music plays for a few minutes, after which every disappears again. Very frustrating, hope found a solution? Prius 2005 + JBL
     
  6. dolj

    dolj Senior Member

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    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    It might be a problem with the aux socket. It has a switch to detect whether a cable is plugged in or not and it seems to fail in the "no cable connected" state when it breaks.

    Search for some posts on how to bypass that switch so it defaults to the "always connected" state.
     
  7. iRunfastXC

    iRunfastXC Junior Member

    Joined:
    Jun 30, 2019
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    Location:
    Pennsylvania
    Vehicle:
    2004 Prius
    Model:
    Touring
    Our cars have no AUX sockets.