Recent content by Josiah S

  1. J

    Is the Black Amp cord on a car stereo actually a ground wire?

    My 1999 Mazda Protege LX has 12 cords plus 1 black cord with a clip attachment that reads AMP 12V. It was attached to my stock radio just by clipping on to a piece of metal on the back of the unit. I My aftermarket radio has a black wire that is supposed to be grounded to a bolt. I'm wondering...
  2. J

    Rear Speakers on 1999 Mazda Protege don't work, what to do?

    I bought a used 1999 Mazda Protege. The head unit display flickers sometimes and can go unresponsive for a minute but the audio still works. Only the front speakers are working. There are two door speakers in the back and then 2 more behind the back seats all of which are not working. How should...
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