I purchased this item to fix interference issues with my Can-Am X3's Noam stereo system caused by engine running. The interference pitch changed with RPM. The problem likely stemmed from tightly aligned accessory and factory wires in the tunnel. The product successfully resolved the issue. I applied hot glue around the seams to prevent water ingress and it completely eliminated the noise.

The review mentioned that using the plug instantly eliminated the humming sound heard when playing computer audio through the stereo.

When I installed subwoofers, I noticed engine noise and electrical interference. However, after using the app, all the issues disappeared, and the sound quality remained excellent.

Some people found it ineffective. If you receive a faulty unit causing a hiss in your stereo, exchange it for a new one. I was surprised by its weak performance, but it effectively eliminated the noise.

In my setup with a Kenwood head unit and a self-contained sub, I experienced ignition buzz that I couldn't resolve despite efforts to fix it. I suspected a ground issue but couldn't pinpoint it. Recalling a similar setup I used with a more powerful system, I decided to try it out. Ultimately, it serves my needs.