MP3 Shield independent volume control (beginner)

hi,

I was wondering if there is an independent volume control for the Sparkfun MP3 Player Shield? I’m trying to have one input (motion sensor) initiate the left channel of track001 and another input (another motion sensor) initiate the right channel of track001.

To have the two channels synch up to sound full stereo but initiated separately would be the goal.

I have code that seems to set this up but I’m not sure if I can use it in the way I want to.

I attached the parts of the code that I think relate to the question

Thanks

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