Can't find what you're looking for? Submit a Request THANK YOU! If we do not have a product listed for a vehicle application you need, let us know and we will check to see if we can provide you with a solution. Submit Ground Loop Isolator $19.95 SNI-1 Description Print Eliminates ground loop noise between the audio source and radio. For use with portable devices that have RCA audio outputs, including pre-amp outputs Close to perfect response of +/- .03 db from 2 to 20,000Hz Utilizes proprietary audio transformers for a 1.3 dB gain