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First post to the board.

I have a 1991 Brougham that develops a noise in the radio after warming up. I noticed this morning that the noise is directly related to the engine speed. At idle, everything sounds great, but as car picks up speed, a crackling sound comes from the speaker. I only know that it comes from the driver's side front speaker, but is probably coming from all of them.

Any experience or suggestions?

I putting this car in the garage for other mechanical work and I'll have time to investigate this over the coming months.

Thanks for your help.

Hunt4Fun
 

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Check your engine block grounds. I bet the whine is coming from the alternator.
 
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