Caution: T

he next step should be followed with care. Glue guns are hot and can burn you. Kids get an adult to help you.

Caution: The next step should be followed with care. Soldering irons are hot and can burn you. Kids get an adult to help you.

I selected a round coffee can lid to be the base for my chest piece. You can pick any shape you want. Layout where you want everything to go before you do anything permanent. Mark where you want everything to go.I made holes in the coffee lid using a hot glue gun. The glue gun melted holes just the right size for my speaker wires and leds. I then used the glue gun to glue the speaker. Before gluing in the leds I bent the legs. I bent the cathode leg of the leds 90at the led. I bent the anode leg 90at the led and then 90up halfway down the leg.The ground from the arduino should be soldered to the cathode leg of all the leds. The anode leg of each led will be soldered to a different digital output. The audio source's ground solders to the ground input on the arduino and the left or right channel solders to the analog input, A3, on the arduino.The ground of the speaker solders to the ground of the av wire, the outside ring. The positive of the speaker solders to the signal of the av wire, the inside post. I did not want to cut up my cable so I used some terminal connectors for this part. I used the spade terminal to connect to the ground of the audio source. You may not be able to do this if your av cable is different. I used the male terminal to connect to the signal of the audio source because it fit fairly snugly over the wire. I then soldered those together.After you are done test the chest piece.