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It's technically feasible but not straight forward. Firstly it would require an audio stream (which would mean getting the Force powers-that-be to agree). Then the delivery: ideally you would want broadcast rather than individual streams (which would compete for bandwidth and likely introduce delays that make the sound out of sync with the play). It would be a lot more straightforward in a stadium like Optus which provides Wifi, and so the audio could be broadcast from a local server. NIB, not sure what the wifi situation is.
So, doable but much easier to re-enable the Rugby Ears.