Audio through analog 3.5mm Jack

@shaunmulligan Thanks for the links! I got it working just by calling a start.sh through my package.json like so:

"scripts": {
    "preinstall": "bash deps.sh",
    "start": "bash start.sh"
  },

and then inside the start.sh i call the amixer and after that i start my app

#!/bin/bash

amixer cset numid=3 1
node /usr/src/app/server.js

Thanks again!