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ap4-ch21

  1. PAC AmpPRO AP4-CH21 Can you disable factory speakers?

    General Car Audio Discussion
    2012 Ram, just installed a AP4-CH21 hoping to use toslink to a Helix DSP Pro that I pickedup off SkizeR. Everything is connected and I still have audio coming through the factory speakers, do you have to cut the speaker wire connections from the factory amp? Please tell me I'm missing...
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