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no sound from alpine cda-9831?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=45246
Printed Date: July 05, 2025 at 5:39 AM


Topic: no sound from alpine cda-9831?

Posted By: Boostedboogie
Subject: no sound from alpine cda-9831?
Date Posted: December 15, 2004 at 12:52 AM

all channels are wired correctly and remote ant wire is hooked up.  the unit powers up fine and sound comes from the radio am/fm, but when i try to play mp3s or cds, there is no music.  it shows the file playing, just no sound.  any help here?  this unit is brand new and i need this thing working by wednesday morning if possible.  thanks!



Replies:

Posted By: markcars
Date Posted: December 15, 2004 at 8:48 AM
Today is wednesday and you posted your question today at 1.52am saying you "need it by wednesday" and not "need it by today noon". Did you mean you need this by today or next wednesday?

In any case it looks like you have a defective HU. Try more than one CD (preferably an original factory pressed CD) to make sure your CD is good. If you can listen to your Radio from the HU then your wiring and speakers are good.   If only the CD and mp3 does not play even though you see the CD playing on yoru display, the only thing I can figure out is a partially defective HU. If you can take it back to the store you purchased for an exchange, you can have it today (wednesday). If you have to ship it to somewhere, the sooner you ship it, you might get it by next wednesday.

Good luck and let us know how you fare with this issue.




Posted By: geepherder
Date Posted: December 15, 2004 at 10:18 AM

This is not a big deal.  It sounds like you've hooked up the blue wire (power antenna) as the remote turn on.  Hook up the blue/white wire and you'll be good to go.  Without even pulling your deck, watch the power light on your amp (assuming you have one) as you have your buddy switch from radio to CD.  The power antenna wire has no power when not on radio.



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My ex once told me I have a perfect face for radio.




Posted By: markcars
Date Posted: December 15, 2004 at 11:10 AM
yes, that right. The blue "remote antenna" power wire gets approximately +12v only when the radio is on. So your external amp was on only when the radio was on and no voltage when in CD mode. if you connect the remote-turn-on wire (which is usually also blue) like   geepherder mentions, that should work.

I was not too clear when I read "...and remote ant wire is hooked up..."

have fun with your CDs and mp3s.




Posted By: Alpine Guy
Date Posted: December 15, 2004 at 1:37 PM

WHat kinda car?  Are you useing an amp or powering the factory stuff with the HU?  Sounds like you don't have the remote hooked up to the factory amp turn on wire, and it turns ooff when you switch to cd.

Tell us exactly what you have , and we can help.  But we have no clue what your set up is.



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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.





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