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Replacing factory JBL amp under seat

Discussion in 'Gen 3 Prius Audio and Electronics' started by Robolord, Nov 7, 2021.

  1. Robolord

    Robolord Junior Member

    Joined:
    May 30, 2017
    12
    2
    0
    Location:
    Oregon
    Vehicle:
    2011 Prius
    Model:
    Four
    Hey guys, I have a 2011 with JBL sound (non-nav). I replaced the head unit with a Joying but unfortunately, the new head unit is not capable of adjusting the amp’s gain and the sound level is far too quiet.

    Luckily, a great deal popped up on a JBL DSP/amp, so I’m going to replace the factory amp (Harmon 86820-0W622) in the same location under the passenger seat. I purchased a wiring harness to connect the speakers without cutting any of the factory wires and that’s all good.

    The only issue I have now is that the factory amp has three connectors and only two are addressed with the wiring harness I purchased. There is a third, (blue) connector that carries the power, audio, and communication from the head unit. Does anyone know where I can purchase one of these connectors so I can pipe the audio and turn-on signal to the new amp without running new wires from the dash to the seat?

    photo attached.

    Also, any advice on running power from the rear 12v battery to under the seat?

    thanks!
     

    Attached Files:

    #1 Robolord, Nov 7, 2021
    Marvins_dad likes this.
  2. Robolord

    Robolord Junior Member

    Joined:
    May 30, 2017
    12
    2
    0
    Location:
    Oregon
    Vehicle:
    2011 Prius
    Model:
    Four
    Went to my local car audio store and discovered a Metra 70-1761 plugs right into that connector. Now I’m all sorted with my new head unit and amp.
     
    #2 Robolord, Nov 8, 2021
    Marvins_dad likes this.
  3. johnerh

    johnerh Junior Member

    Joined:
    Oct 15, 2022
    45
    12
    0
    Location:
    Los Angeles
    Vehicle:
    2013 Prius
    Model:
    Four
    I have a very similar situation. Mine is a 2013 Prius with the JBL and touchscreen. I replaced my head unit with an android Chinese unit from AliExpress… My audio is way too loud though. The only way to make it sound moderately normal is to go into the amplifier settings, and turn down all of the settings. Bass, treble, and mid. There is no setting for adjusting the volume. After turning down all of these settings, my audio sounds like it’s at the appropriate volume. Unfortunately, when I go more than 2/3 volume, I start hearing crackles and distortion. Would you recommend I change my amplifier as well?
     
    #3 johnerh, Nov 9, 2022
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