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post #1 of 3 (permalink) Old 04-16-2009, 08:46 AM Thread Starter
Join Date: Mar 2009
Posts: 6

I have a 2007 Cobalt and some times the door chime/directional sound/left front speaker don't work. Could it be a loose wire or something else? Also how do I remove the radio cover plate to take out the radio?
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post #2 of 3 (permalink) Old 04-16-2009, 12:59 PM
Jersey Fats's Avatar
Join Date: Apr 2009
Location: Jersey
Posts: 14
From my research I found that everything on the 07's go through the head unit.
I just brought in my 06 to have the left door speaker replaced and I had a lack of sound from the right door also. (Since I got it 3 weeks ago its under warranty) The dealer told me they replaced both speakers.

You have to take off 3 pieces of trim to remove the head unit.
These are the same steps I did when I installed my head unit.
Follow this thread (just the dash break down):
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post #3 of 3 (permalink) Old 05-06-2009, 12:27 PM
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Join Date: Apr 2009
Posts: 1,219
if you put an aftermarket head unit in the door chimes and directional s do not function correctly and to replace the brain in the head unit a cable from gm has to be purchased for like a hundred dollars or so i had to do that when i put my system in i dont kno the code for the cable but i could get it if interested
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