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The 7th generation (E100) of Toyota's best-selling compact car.

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Why is there a engine noise through speakers?

I installed custom sound in my car, but now and again there is a irritating engine noise coming through the speakers. What can i do to fix it? It gets worst when i turn on the lights. Help me please...

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Check connection of speaker wires, could be grounding issue or - or + wires touching part of car body.

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Yes i thought it could be that. Just need to find where it is touching or not ground.

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