Hello David. I'm having the same issue that you described in this post: http://www.audi-sport.net/xf/threads/humming-noise-with-aftermarket-chinese-stereo.256111/
Please, can you describe the process that you did ? I don't have experience with this kind of issues.
Thank you
Please, can you describe the process that you did ? I don't have experience with this kind of issues.
Thank you