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Alpine CDM 9821

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=46127
Printed Date: May 10, 2025 at 7:40 AM


Topic: Alpine CDM 9821

Posted By: worlddre
Subject: Alpine CDM 9821
Date Posted: December 27, 2004 at 4:38 PM

Today i installed an alpine cdm 9821 in my car and for some reason the memory wont work and i cant figure out why. I checked the wiring several times and still no luck. any ideas?



Replies:

Posted By: 97Pathy
Date Posted: December 27, 2004 at 9:28 PM

are you shure you have a constant 12v , and that the ground also always stays ground?


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