# High pitch squeal in the stereo system

**URL:** <https://community.cartalk.com/t/high-pitch-squeal-in-the-stereo-system/29022>\
**Category:** Maintenance/Repairs\
**Tags:** toronado, oldsmobile\
**Created:** [April 12, 2009, 12:29pm UTC](https://community.cartalk.com/t/high-pitch-squeal-in-the-stereo-system/29022 "2009-04-12T12:29:45Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Reenie](https://avatars.discourse-cdn.com/v4/letter/r/a587f6/32.png) [@Reenie](https://community.cartalk.com/u/Reenie)\
**Post date:** [April 12, 2009, 12:29pm UTC](https://community.cartalk.com/t/high-pitch-squeal-in-the-stereo-system/29022/1 "2009-04-12T12:29:45Z")

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I HAVE A 1987 OLDSMOBILE TORONADO TROFEO WHICH IS EQUIPPED DELCO GM BOSE MUSIC SYSTEM. RECENTLY A LOUD HIGH PITCHED SQUEAL CAN BE HEARD COMING FROM THE SOUND SYSTEM WHILE IT IS ON. HOW CAN I PINPOINT THE PROBLEM AND HOW CAN I CORRECT IT.

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**Author:** ![B.L.E](https://avatars.discourse-cdn.com/v4/letter/b/848f3c/32.png) [@B.L.E](https://community.cartalk.com/u/B.L.E)\
**Post date:** [April 12, 2009, 9:21pm UTC](https://community.cartalk.com/t/high-pitch-squeal-in-the-stereo-system/29022/2 "2009-04-12T21:21:14Z")

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does the problem exist when the engine is off?if it is a wail that varys with engine rpm,it may be picking up interference from the alternator.

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**Author:** ![Audi\_Masochist](https://avatars.discourse-cdn.com/v4/letter/a/f04885/32.png) [@Audi\_Masochist](https://community.cartalk.com/u/Audi_Masochist)\
**Post date:** [April 12, 2009, 11:12pm UTC](https://community.cartalk.com/t/high-pitch-squeal-in-the-stereo-system/29022/3 "2009-04-12T23:12:41Z")

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Indeed, it could be something as simple as a ground which has come loose. Check all your connections, and grounds for the power supply and antenna.

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**Author:** ![Reenie](https://avatars.discourse-cdn.com/v4/letter/r/a587f6/32.png) [@Reenie](https://community.cartalk.com/u/Reenie)\
**Post date:** [April 13, 2009, 11:51am UTC](https://community.cartalk.com/t/high-pitch-squeal-in-the-stereo-system/29022/4 "2009-04-13T11:51:25Z")

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I will check that out. The sound was intermittent. It would come on suddenly while driving and sometimes fade away. I would turn off the radio and then on again, and it would be find, but now it has the high pitch all the time. I don’t remember if the sound was there with the engine off. Thanks