Question about Pioneer DEH-P47DH CD Player

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No Sound I recently purchased this unit used and wired it to my Dodge Ram pickup. I took good care to make sure the wiring was correct. When I turned the truck's ignition on, I was able to power up the unit just fine, but I get no sound at all to my speakers. I have used a volt meter to check the connections from the wiring harness to the stereo and those are fine. There is no sound from a CD or from the tuner. Though the CD timer counts as it plays and the tuner shows the "Stereo" icon when I tune it. Every function on the unit seems to work properly, I just have no sound. I plugged my old factory stereo back in to test the speakers and they are fine. I'm at a loss where to go next. Afraid there is a problem with the internal amp or something. Any ideas?

Posted by Ben Rathbone on


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Most ram trucks came with a infinity system. the amps are in the front doors, mounted to the 6x9 speakers. and they power the tweeters in the columms, and also rear speakers if you have them. I had to replace the entire system.

Posted on Aug 18, 2007



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Does your Dodge have a factory amplifier? It definitely sounds like it. Try hooking up one of the speaker wires to an external sound amplifier or something like that and see if you get sound. If you don't, then you have a factory amp. You can also try touching the speaker wires with a 9volt battery and listening for a popping sound. If you don't want to test, contact and ask if your truck has an external amplifier. They can help you find a bypass wiring harness so that you don't have to deal with it.

Posted on Oct 31, 2006


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