So yesterday I finished installing an aftermarket head unit in an '07 A4. I noticed that the rear door tweeters are hissing a little (sounds like white noise) all the time now.

When it got dark out and I put the headlights on, that hiss became a full buzz. Quite annoying. Have any of you heard of this happening before? If so, are there any fixes?

Thank you.


EDIT: Wish I could delete my last post in this forum. I found my own answer to that question.