So I was wondering how to create a sound activated LED circuit for each of my speakers. I want the red LEDs to light up when the subwoofer is activated and the blue LEDs to light up when the left and right floor speakers are activated. I had a thought about wiring the LEDs parellel to in input for the speakers like in the picture below but there is not enough voltage in the speaker wire to activate my LEDs. I was thinking a voltage regulator may work but I do not know much and could not find much information online. Thanks for the help. Below is a picture of the set up I was thinking about.