Review on Legacy Noise Suppressor Eliminates Interference by Melanie Trunnell

I was optimistic that this would work with my car stereo to eliminate the static that always occurs when accelerating, but unfortunately it only moderately reduces static. The connection diagram on the box shows the connection of the red wire to the radio and the blue wire to the battery cable power source, but the diagram on the unit itself says exactly the opposite! I've taken the trouble to try both and it works better with the red wire going to the radio, but it still doesn't eliminate static. I wouldn't buy this again.