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    Adding speakers to a 2 speaker system

    Forgive me, I know this is a speakers 101 question, but it's been a long time.

    I would like to add two 6 x 9 speakers to a factory radio that supports only two speakers. The connector on the back of the radio is wired as such:

    Yellow - +12V Memory
    Red - +12V
    White/Orange - Dimmer
    Orange - Illumination
    Black/Grey - Right Front Speaker
    Black/White - Left Front Speaker
    Blue - Ground

    Is it reasonable to splice into the speaker connections and both to the ground?


  2. #2
    maylar's Avatar
    maylar is offline Electrical Weenie

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    NO. Never use ground for a speaker return lead. If your stereo can handle additional speakers, you would connect them to the same pairs of wires used for the existing ones.

    You may find that your factory stereo won't handle additional speakers without becomming distorted. The best solution is to use an external amplifier for the new speakers and tap into the existing speaker wires for the amp's inputs. That'd also give you the ability to adjust the balance front-rear.

    1999 Buick Park Ave Ultra
    Head Unit: JVC KWHDR720
    EQ: Audiocontrol EQL
    Front Stage: Hybrid Audio Technologies Imagine 5.25 mids, Morel Maximo tweets
    Sub Stage: Boston G3 10", 0.5 cu ft sealed
    Amp: PPI Phantom 900.4
    Rear Fill: Boston SE953 6X9's

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