VU METER CIRCUIT
Using a circuit similar to this one, I connected the input up to a CD player and replaced the LEDs on this circuit with Solid State Relays. This all gets connected to the Lights above the garage. When the music gets louder, more lights are lit. When the music gets silent, all the lights are off. The music is heard from the comfort of your car on our own private radio station. There are currently no speakers outside the house.