Question about Pioneer DEH-3900MP CD Player

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My speakers keep jumping when I got my amp volume on the cd player at 0. My amp is turned all the way down. My speaker wires aren't crossed up. I bought some new audio jacks. Its still doing the same. What else could it be besides if my audio on the back of my cd player is messed up

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Ouch.. :) Sounds to me like you've got a DC bleed somewhere.. kinda like when you're checking phasing ona speaker box with a 9volt battery.. I'd try checking the grounds (yer subs will still work if you have a qwerky ground coming off the back of the deck in the dash).. try hooking the amp up direct to the battery and chassis grounding it in a different spot and see what happens.. Also, I had a reciever that would chirp when ya cut it on, and it was a hairline cut in one of the outbound leads grounding on the metal in the dash.. Lemmee know if that works! :)

Posted on May 21, 2009

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If you want instructions in brief this involves POWER CONNECTIONS, PHONO LEAD & SPEAKER CONNECTIONS:

POWER (At the same time when routing these wires, I would connect the PHONO LEADS from the car cd player to the amp, if your car cd player only has 1 preout (1red & 1 white) then you will need two phono splitters, a female to 2 males. Phono leads carry the unamplified sound from cd player to the amp):
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OK

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