Just wanted to share my latest pi project. I'm not 100% sure the arduino code is correct here, I found it in a random folder. I'm like 80% sure it's the correct file: https://www.dropbox.com/s/jff7hsx428o3s5q/FMTouch.zip?dl=0
Right-click 'Download' and select 'Save Link As' if the file opens in a new tab.