Audi A3 + S3 (2003 - 2008) - 04 Buzz in front speaker...only when headlights on

Honest John Back Room » Technical matters
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Tue 17 Mar 2009 17:17
04 Buzz in front speaker...only when headlights on - mrcookie
It would be great if someone could help me out with this problem, it would really be much appreciated.

Basically, I get a buzzing from the driver side front speaker. The car needs to be have been driven for at least 10-15 mins before any buzzing occurs. And then the buzzing only happens when I have the right indicator on (it buzzes in time with the clicks) or if I have the headlights on (constant buzz). And I also get a 'quick' buzz whenever I release my foot off the gas! Very strange!

I can stop the buzz by slapping the dashboard! (although, this sometimes makes it louder!)

Any ideas please?

Edited by mrcookie on 17/03/2009 at 17:19

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Tue 17 Mar 2009 17:47
04 Buzz in front speaker...only when headlights on - Peter.N.
Sounds like a bad earth that is common to the radio and front lights. Make sure you have an earth lead from the radio direct to the nearest earth point - any screw into the metal of the body will do.
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Wed 18 Mar 2009 17:17
04 Buzz in front speaker...only when headlights on - mrcookie
Thank you
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