Question about Pioneer DEH-P6400 CD Player

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No sound My girlfriend had this mounted in her old car when she had the dealer remove it for her and i went to put it in everything worked but no sound.I double checked the connections and everything seemed to be in good's not the car cause we put an alpine in and it worked fine.?????????????????????

Posted by chad matson on

  • lwholloway Jan 20, 2009

    i just brought a new harness cause i thought it was the harness why i didn't have any sound to any of my speakers, the speakers are new they work with the other radio i have which is a pioneer deh- p3100 and that radio does not power on now.. but all of the connections are fine on both radios and it use to work fine!



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Christophe Thompson

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Proper wiring harness color match colors to wire harness when wires get old they fade sometimes you have to really look at them im thinking you got faded wires dirt will do that the speaker wires are as goes from top from power and ground 2 sets for fronts on top row first bottom yellow memmory then antenna remote rear 2 sets of wires wire harness should be the same if not check

Posted on Apr 21, 2008



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See solding points of the conectors in the radio and if the MOSFETis good(see if it is hot)

Posted on May 06, 2007

  • Anonymous Jul 03, 2007

    are the speakers ok?



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