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Alpine cde-7872 head unit

The speaker leads on this head unit have no sound,,,

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They are blown, either have them fixed or buy another head unit or the best way is to just use the RCA outputs from the head unit

Posted on Jun 07, 2009

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2 Answers

Alpine head unit CDE-9870 will not play sound through speakers of a 2003 pontiac vibe. what could be some issues to cause this?


This generation of Vibe may have the upgraded audio system installed from the factory. In order to get the audio from an aftermarket radio to play through the factory amp, the factory remote turn-on lead must be located. If you are using an adapter harness, it may have the wire installed, just attach the blue/white stripe wire from the Alpine to the blue or blue/white stripe wire on the aftermarket harness adapter.

Mar 01, 2011 | Alpine CDE9870 CD Player

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No audio even though sterio wires are all connected


My 1997 Alpine CDE-7828's wiring schematic doesn't disclose one important thing for many older and possibly even some newer sterios (aka 'head units'). If all wires are connected per the sterio's schematic andf sound is missing, you probably have a dedicated pin on yout vehicle's harness/connector that will read something like 'Turn-on AMP signal", <br />until you jumper the ignition hot lead (between the harness plug and your sterio) to your vehicle's 'Turn-on AMP signal' pin/connector wire (add a wire if none is supplied in your vehicle's connector), you won't get any sound even though all the other wires are connected per your head unit''s instructions.

on Nov 06, 2010 | Car Audio & Video

1 Answer

The radio plays for a minute or two and then there is no sound. The head unit stays on and works but no sound. What do I do?


make sure all speaker connections and power grnd connections are soldered and either taped or heat shrunk

Jul 26, 2010 | Alpine CDE-9852 CD Player

1 Answer

Alpine 9845 cde head unit car stereo i Cannot figure out how to access the Fader not the balance,altho i havent seen that function either. ive been to the alpine site and they dont even mention it. im sure...


Press the Rotary encoder (CDE-9845/CDE-9843
only) or press MODE (CDE-9841 only) repeatedly
to choose the desired mode.
Each press changes the modes as follows:
BASS → TREBLE → SUBWOOFER* → BALANCE → FADER
→ DEFEAT → VOLUME → BASS
BASS: -7 ~ +10
TREBLE: -7 ~ +7
Subwoofer : 0 ~ +15
Balance : L15 ~ R15
Fader : R15 ~ F15
Defeat : ON/OFF
Volume : 0 ~ 35

Feb 11, 2010 | Alpine CDE-9845 CD Player

1 Answer

My Alpine CDE 7872 faceplate goes blank intermittently, the unit still functions, just can't see what station you are on, what track, volume, etc...


is the faceplate detachable? if so remove it and clean the metal contacts on both the din unit itself and the faceplate with rubbing alcohol on a cotton swab or Q tip.

if it is not a detachable face, then i would say an internal solder joint is starting to come loose, that is an older alpine model number after all.

Dec 16, 2009 | Alpine CDE-7872 CD Player

1 Answer

Subwoofer for alpine cde-9843


In short, no.

The CDE-9843 cannot drive a sub of the type you mention without an amp, but you can fit a sub with it's own built-in amp.

As standard, the head unit has a basic in-built amp supplying 4 x 16w RMS at 4ohms but there is the facility via the unit's own menu to turn off the in built amp and use the output sockets as a pre-amp feed, but in reality if you want to drive an amp you'd be better off to start with a more highly specified head unit to begin with, even the next model up, the CDE-9845 is better suited as there are pre-outs for front and rear speakers.

User instructions are available from here.

If my reply has been of assistance then please return the favour by rating my answer.

Nov 09, 2009 | Alpine CDE-9841 CD Player

2 Answers

I am getting a DC error on my alpine cde-102 head


Hello christo12385,

The DC error is most likely caused by a shorted or grounded speaker wire. Check all speaker wires, correct the problem, and then go into the sound setup settings and reset the POWER IC to ON.

Hope this helps.

Sep 25, 2009 | Alpine Car Audio & Video

1 Answer

Removal of my Alpine CDE-7872 from my 1998 Dodge Neon


Hi there,

it sounds like your trying to remove the cage that holds the CD player in, you need to slide to small flat screen drives either side of the unit between the cage and the unit, then remove the cage after.


Feb 16, 2009 | Alpine CDE-7872 CD Player

1 Answer

I have a CDE-9872 and it wont pick up my ipod touch


Add Alpine's optional "Full Speed" connection cable and you'll be able to use the CDE-9872 to control your iPod. -Crutchfields website

This is compatible with first and second generation iPods touch.
fyi- if you have a mini-stereo aux in jack on the deck you can connect a ipod touch compatible mini stereo cable to the earphone jack of your ipod.

Dec 28, 2008 | Alpine CDE-9872 Car CD/ MP3 Player

2 Answers

Alpine CDE-7871E - Head Unit now not displaying any LED


Check the leads from the heat sink on the back and my guess is the contacts between the faceplate and the actual head unit are not doing so well. This is a detachable face unit right?

Nov 29, 2007 | Alpine CDE-7870 CD Player

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