Review on PAC SNI 135 Ground Loop Isolator by Tom Oberhue

This product saved me! I bought a Belkin Bluetooth music/speakerphone that connected to my car's 12 volt power supply and my stereo's AUX input, and it made a horrible squeak that matched my RPMs. The higher the RPM, the higher the tone of the hum. This product completely eliminated that noise and made my new product usable. It removes the faulty soil found on my old machine. Must have if you have signal noise! The product and cables appear to be pretty solid. Easy to use.</p>