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A friend recently gave me a Pioneer deh-p5750mp car stereo cd player and I'm having trouble installing it. I have successfully managed to connect the positive, earth and constant power wires and turn the unit on. However when I try and connect my speakers (i'm just using speaker wires not the RCA connections) I get no sound. My speakers are just plain old speakers, I'm using no amps, subwoofers or anything fancy, just positive and negative speaker wires. I have checked that the unit is putting out sound by connecting a pair of headphones to the rca output (via an adapter), and I hear audio through the headphones, but I still can't get any sound through the speaker wire connections. I previously had an old Daewoo cd player installed and working fine, so I know there is no problem with the wiring to my 2 speakers. Help me please!

Posted by chopperchods on

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One thing to remember about most radios, the RCA pre amp circuit will still work even if the mosfet power amp inside the radio does not. The best way to know if the amp inside the radio works is to use one matching color pair coming off the radio to wire up a random speaker right to the radio. You can use just about any old random 4 ohm speaker that is laying around to check it. The best solution if the amp inside the radio is blown is to replace the radio or amp the pre amp outputs with a small 4 channel amp. Oh, by the way. What vehicle are you connecting this into? And does the vehicle say Bose, Infinity, or ect sound or Premium sound? These usually denote a factory amplifyer already onboard and requires special connections to get the signal to these amps to then be delivered to the speakers.

Posted on Sep 12, 2011

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