MP3 digital noise right speaker

[Martinos]

Hello, I bought a Pumpkin Android 5.1 Lollipop Car Radio Double Din Stereo for Ford Mondeo / S-max / Focus Galaxy 7 inch at Amazon. I installed the unit today. Everything is working fine so far. I only have one problem..... When playing a MP3 audio file (from SD and main memory) I here (soft) digital noise from one speaker (right). I have no problem at all listening to the radio or music CD, so it is not a wiring issue. I tried different mp3-files, all the same noise.

Can anyone tell me what's wrong and/or how to fix this? Thanks in advance!!

[Jammy]

Hi,
Sorry for the trouble caused.
Could you please first tell us your order number or buyer ID?
It's important for us to provide you accurate and best solution in the future.
Regarding your issue, it's strange, would you mind take a short video, upload it to youtube, then send it to us?
We will check it and try to provide you positive solution.
Regards