Niagara read multichannel audio in sequencer

Ello, I’ve got a niagara system with audio spectrum / buffer that reacts to a single channel of audio, If I put audio in my sequencer it can acceass channel 0 and 1 without an issue, however I want to split my audio into more channels for different systems. If I import a wav file with 5 channels, it imports and is recognized correctly, however if I put it in the sequencer, channels beyond the second are ignored.
I think this is because the system is looking at the UE output submix? i dont really understand submixes, if anyone can help me or guide me on how i can plug / assign different channels or seperate wav files to different niagara systems, I’d really appreciate it.