I’m very new to programming, but I used the MP3 shield trigger sketch on the sparkfun website. I uploaded the sketch as is to my arduino uno. I have 9 MP3 files all named correctly on my SD card, but when I use a jumper wire to short any of the trigger pins to ground I am getting no sound in my headphones. I then tried to upload the sketch for the the example file player that came with the shield. I uploaded it and opened up the serial utility tool and could play any of the 9 MP3 files that I had loaded on the SD card. Do I need to modify the MP3 trigger sketch in any way to make it work for me? Was hoping it was as cut and dry as it looked as I’m using it to finish up a Christmas present, but ran into technical difficulties I see. Any help would be greatly appreciated.