Can't find what you're looking for? Submit a RequestTHANK 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 $21.00 SNI-1 Description PrintEliminates ground loop noise between the audio source and radio. For use with portable devices that have RCA audio outputs, including pre-amp outputsClose to perfect response of +/- .03 dB from 2 to 20,000HzUtilizes proprietary audio transformers for a 1.3 dB gain