Question about Alpine CDE-9845 CD Player

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Not much sound from external amp.

Hooked up Optimus 200w. amplifiier w/ MTX Thunder 5000 speakers, using RCA cables from rear output jacks. Sound comes out of factory speakers just fine, but MTX speakers don't move or make much noise. Is it something to do w/ POWER IC setting, or is there another setting that I should try? Any info to help solve my problem would be greatly appreciated!

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Check the gain

Posted on Dec 19, 2008

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Power but no sound help plz....


well here we go how do you have your pioneer radio connected .
did you run the radio speaker wire out to the factory speaker or did you have an amp connected to the rca output jacks.

1 well if the radio connect by the speaker wire out the
output chip in the radio is fried and needs repair ....

2. if u have a amp connected to power your speakers for sound
check the amp to make sure you have power and no lose connection or speaker wires disconnected.
3. it also possible that the rca jacks are fried too


I no by experience that pioneer loses ground on the audio output jack (rca) well what we did to fix it is..
take and 18 gauge wire stripe back about 1/2" to 1" of the insulation to expose the copper wire and wrap this around the metal casing of the rca jacks and then ground the wire to a ground point do this for both left and right rca jacks...

radiorepair@windowtintingin239.com

Oct 30, 2013 | Pioneer DEH-P3500 CD Player

1 Answer

It's not putting out any sound. the system is coming on and saying its playing the disc, all the wires look perfectly hooked up. but still no sound. what else could it be?


are you running an external amp,for speakers or are you running speakers right from head unit,if so try an external amp you may have problems with the internal amp thats why you have no sound. an external amplifier should fix your problem.you will need amp and rca cables.try to borrow one with rca cables to test .hope it was a help.

Dec 22, 2010 | Sony CDX-GT300 CD Player

1 Answer

I have no sound


if you have no sound from the speaker wire outputs most likely your channels are blown wich is common if you insist on using the radio you can hook up an external amplifier with the rca outputs on the back of the radio and run the speakers to the amp instead this will give you amplified sound but it will give you sound out of the radio

Feb 28, 2010 | Clarion DXZ385USB Car CD/ MP3 Player

1 Answer

Where are the amps and how do i by pass them for the stereo


The amps are located inside the radio. Most in-dash receivers that provide for "pre-amp outputs" also called "low level outputs" do so by providing female RCA type jacks. These are often found at the end of a short (4 - 6 inch) cable and are usually color coded red & white or red & black (some receivers provide a yellow RCA jack for video in / out, too). To use these RCA audio jacks, you need to realize that one jack is for the left channel source and the other is for the right channel source for a stereo signal. You will have to connect a compatible plug and cable of enough length to extend to a remote amplifier's RCA input jacks. The vehicle's speakers would also need to be connected directly to the same amplifier's output terminals. Using the two audio (left and right) RCA jacks will only allow the radio to control balance of the left and right audio, no fader (front and rear) control is possible. To get fader control, you'd have to either have a radio with four RCA low level output jacks (front L & R *and* rear L & R), or use the radio's speaker (or high level output) wires and connect them to the amplifier's speaker (or high level) input terminals.

All unused receiver wires should be terminated in a wirenut or securely wrapped in electrical tape to prevent accidental contact with grounded metal or other wires behind the dash.

I hope this helps!

Nov 11, 2009 | Car Audio Receivers

1 Answer

Pioneer indash stereo/cd player DEH-7500MP,no internal amp output


some cars have internal amps for the speakers try connecting the remote wire it's the blue wire with a little white on it worked in my moms van.. if that does not work try testing it with a speaker from your house

Mar 31, 2009 | Pioneer DEH-P7500MP CD Player

1 Answer

Rca jacks for external speakers have no output


rca jacks are a low level output. you have to use an amplifier with rca's. you cannoy hook rca's directly to speakers.

Jan 19, 2009 | Pioneer DEH-P3900MP CD Player

1 Answer

Problems with amp or stereo


check out www.installer.com
this site has your stereo's wire diagram.

The amp wires only go to the rear output (rca jacks on back of cd player)
It wont work right if it is connected to the front outputs on the back of cd player

Jan 16, 2009 | Alpine CDA-9856 CD Player

1 Answer

Can the Pyle PLCD-42


Yes there is a couple possible ways.
1. Get 2 RCA Y adapters and split your Preamp Output you will not have any type of fader control this way because you are using a single output.

2. Run one amp from the radio with a set of RCA Cables.
Hook up amp #2 using a Line converter connected to the output of your stereo which will convert you to RCA the just run a cable to the amp..

3. If one of the amps has a High Level Input Run a set of speaker wires from the stereo outputs to the High level Input.
I personally prefer the above 2 methods I find Low Level input sounds better.

Hope this gives you some Ideas and helps


Aug 31, 2008 | Pyle PLCD-42 CD Player

2 Answers

No sound through speakers


are you using RCA outputs(the round red and white plugs)? if you are then your amp is not turning on and if you are hooking up speakers to your RCA's (low level) then you will not hear any audio the signal is to low. would need to know more about how you checked the ic power?? one could verify an output ic by hooking up an amp since the RCA audio signal is picked off just before the output. if the low level works but the speakers do not then you have a bad output. anything else an o-scope would be handy.
good luch stereo tech (genesisportland@hotmail.com)

Feb 03, 2008 | Alpine CDE-9881 CD Player

1 Answer

Pioneer DEH-P2600


blue and white wire on a pioneer is usually the power antenna wire, most people use it as the lead for power to turn on the amp that is installed, the amp should be hooked up to the RCA jacks on the back of the player to the input RCA jacks on the amp. then the outputs vary, some amps are bridgable which means that you can hook up one speaker to both output speakers this will almost double the watts to the speakers. you must know which side would be positive and which side negative to set it up like this. also important is it a two or four channel amp. this all matters. if you can provide more info I can assure you the best hookup possible for premium sound.

Dec 11, 2007 | Pioneer DEH-P6900UB CD Player

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