This project uses the Daisy Mp3 Player kit from MAKEzine, a VU meter from this instructable , and a case from Curious Inventor.
Step 1: Parts
-LM3915 x 2
-1k ohm resistor x 3
- 1 1/8" Stereo Jack
- 1 1/8" Stereo plug
- Analog Gauge
- DPST Toggle switches with return to center spring x 5
- SPST Toggle switches x 2
-LED Holders x3
-5v power supply
-panel mount power jack
-Case from Curious Inventor http://www.curiousinventor.com/store/product/156
-MakeMP3 player kit.
-Stand offs x8
Crimp terminals and .1" headers
Step 2: MP3 Kit
Step 3: VU Meter
Since we send all the power to the meter, I tied all of the negatives from the LM3915s together and then to the meter.
Step 4: VU Meter positive
Step 5: Solder your switches together.
I used a handy little tool from www.CuriousInventor.com, a crimper for this small connector. You don't need this, you could solder or use pliers, but it is so much easier to use.
Step 6: Box
The meter from RadioShack meter included a template to use for drilling the hole. I used a drill press and a bimetal hole saw.