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Audio problems with aftermarket HU and factory JBL amp

Discussion in 'Gen 3 Prius Audio and Electronics' started by shampiaj, Mar 10, 2013.

  1. shampiaj

    shampiaj New Member

    Joined:
    Mar 10, 2013
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    Vehicle:
    2010 Prius
    Model:
    III
    Hello,

    I have a 2010 Prius III with the JBL amp. I recently purchased a Pioneer Appradio 2 (SPH-DA100) head unit to replace the factory radio. I also purchased the PAC TATO wiring harness to integrate the factory JBL amp with the new HU. After everything was connected, I noticed that the back speakers are MUCH quieter than the front. Also, there is some strange "fade in" occurring with the front speakers. I added a line converter, which fixed the quiet back speaker issue but the "fade in" is still occurring.

    "fade in": for some reason the fade/balance is screwed up. If I direct all the sound to the back speakers, every few seconds the front speakers will kick in as well for a short period.

    This is very annoying. Has anyone else experienced this or have a solution to the problem? Thanks.
     
    #1 shampiaj, Mar 10, 2013
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