C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Bose noise

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Old Aug 18, 2012 | 10:19 PM
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Default Bose noise

I turned on the delco-bose stereo in my 1986 coupe tonight and a loud, high pitch tone came out of the speakers. I turned it off and tried again but the sound came back. I tried it again later and the same result.

Since the sound was loud I was thinking that it might have something to do with the relay. Perhaps I am wrong.

Any thoughts or suggestions?
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Old Aug 19, 2012 | 01:12 AM
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Sounds like one or more of your amps have given up the ghost. Mine sounded the same, and another time had a loud popping noise coming out of one of them. Alot of forum members have gotten rid of their Bose systems but I like mine so I used Ecklers refurbishing service and was satisfied with them. Try and determine exactly which speaker the noise is coming from and go from there.
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Old Aug 19, 2012 | 08:45 AM
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Originally Posted by 1986coupe
I turned on the delco-bose stereo in my 1986 coupe tonight and a loud, high pitch tone came out of the speakers. I turned it off and tried again but the sound came back. I tried it again later and the same result.

Since the sound was loud I was thinking that it might have something to do with the relay. Perhaps I am wrong.

Any thoughts or suggestions?
Same thing happened to me a few years back. Turned out to be the Bose relay located center dash panel in back of the info center.

http://www.ecklerscorvette.com/corve...1984-1989.html
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Old Aug 19, 2012 | 11:15 AM
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Thanks.

I am leaning toward the relay because it seemed to come from all directions. It made the noise but no sound from the radio.

I will try the relay first...if it doesn't work then I have a spare relay
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Old Aug 19, 2012 | 01:39 PM
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Originally Posted by 1986coupe
Thanks.

I am leaning toward the relay because it seemed to come from all directions. It made the noise but no sound from the radio.

I will try the relay first...if it doesn't work then I have a spare relay


Start with the relay if that is not it than you have bad amps which can get expensive.

When my amps went bad I found it cheaper to just replace the whole system myself, but thats me.
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