engine noise

[bizzy323]

when i turn on my headunit I got engine noise in my speakers, what can i do to get rid of them? thanks

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[pavengmike6 10+ year member]

Do you have them running off an amp?

If not recheck to make sure you ground is good, and I would even think about making a new one.

Have you had your car tuned up in the last few months? I know this is a stupid question, but I found a company using non-resitor sparkplugs and that will also produce noise.

Does is only happen with the radio, or with your tape/CD?