I am using the QWiiC MP3 Trigger board as the player of sound files into an amplifier board. The MP3 Trigger has worked perfect until now. I have introduced a fade-in volume control via. I2C from and Arduino UNO. The top volume for the MP3 Trigger is set to peak out at 30. The sound fades in from 0 to 30 and everything sounds great. The problem is when the 1 minute sound file is repeated a loud pop sounds and then the sound file plays. I would appreciate some assistance in setting up the repeating of the sound file without the loud popping sound.