The Ground Loop Isolator eliminates whining noises in your cars audio system caused by ground loops occurring in the circuitry behind your dashboard. These unwanted currents are held at bay with this device. This allows your intended connection to pass freely from your device to the grounding source. This convenient auto accessory can be used as a troubleshooting installation tool to break grounds without removing grounding parts. The RCA stereo connectors make installation easy and its compact case installs neatly behind the dashboard. The audio ground loop isolator allows you to maintain the fidelity of your cars audio connections.Specifications: WARNING CA Proposition 65 Yes WARNING CA Proposition 65 Message WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov Description_DES Ground Loop Isolator Description_EXT Ground Loop Isolator; Ground Loop Isolator; Description_FAB Ground Loop Isolator Description_MKT The Ground Loop Isolator eliminates whining noises in your cars audio system caused by ground loops occurring in the circuitry behind your dashboard. These unwanted currents are held at bay with this device. This allows your intended connection to pass freely from your device to the grounding source. This convenient auto accessory can be used as a troubleshooting installation tool to break grounds without removing grounding parts. The RCA stereo connectors make installation easy and its compact case installs neatly behind the dashboard. The audio ground loop isolator allows you to maintain the fidelity of your cars audio connections. Description_SHO Ground Terminal