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Hi i have a 2004 chevrolet optra 5 and i went to replace the battery as it was dead and once i had re-connected the new one i went to use the radio and it would not let me. I need the radio un-lock code and i have no clue where to find it.

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Check the owners manual if no luck call the dealer closest to you or try the contact us link on chevrolet's website

Posted on Feb 18, 2009

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check all your connections to make sure you don't have a short, but most likely it's your amp. If it was the battery it would turn on and off, including radio, then your car wouldn't start(dead battery), but if it does this and your car turns on no problem then it sounds like the amp gave out.

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go to a car audio place they might fix for you as kenwood site has no file on that item try straithfeild car radio or jb

Feb 01, 2009 | Car Speakers & Subwoofers

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Battery went dead and locked radio


if the radio needs a code it will be in the car handbook or if that is unavailable the only other option is to ring the manufactorier to obtain the 4 or 5 digit code be sure to write it down incase this problem occurs again

Jul 02, 2008 | Car Speakers & Subwoofers

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Car radio


HI BBunk,

Sounds like the dead speaker took out the amplifier output too. You may need a new head unit.

Nov 13, 2007 | Elliott's Car Radio 50C564797 Car Speaker

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