Noise filter - ground loop isolator
for Grom AUX, IPOD or USB car kits installations
for any AUX-IN source
eliminates ground loop noise

Product details
Sometimes when you plug your portable music player into the aux input on your
car's receiver, but there's an annoying whine along with the music.
SNI-1/3.5 preamp noise filter plugs in between your receiver's auxiliary input and
your portable music player to help reduce noise caused by a ground loop.
The filter includes a female 3.5mm input, a male 3.5mm output, and 10
inches of cable for each jack.
This noise filter is great for eliminating ground loop noise between an auxiliary
source and radio.
Close to perfect response of +/- 0.03 dB from 2-20,000 Hz
Utilizes proprietary audio transformers for a 1.3 dB gain