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Discussion Starter #1
Hi all,

I have a 05' Audi A4 Quattro 1.8 T. There is a loud noise that seems to come out of the speakers when the car turns on. A loud, whining, droning noise, that almost sounds like the engine noise is coming out of the speakers.

I had initially thought this was related to the amplifier, so I bought a used amplifier and hooked it up, but the issue persisted. So I'm guessing it could be the head unit that's gone? The head unit does power/light up, but there's no sound that comes out, except for the engine noise.

​​​​​​​I have included videos so that you can hear the issue, viewable here.

Prior to spending more on the car, I would really appreciate any advise/suggestions on what may resolve this issue.

Thanks in advance - the support is much appreciated.
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