Mpow Ground Loop Noise Isolator for Car Audio Systems / Home Stereo with 3.5mm Audio Cable
Eliminate buzz:
If your radio, iPod, MP3 player, Bluetooth receiver, or similar audio device is connected to your car stereo via an audio cable and you receive an audio buzz caused by the ground return loop, you will need the Mpow isolator to work together So that you can enjoy high quality music.
Forget annoying noise!