Soundbar sr1

I have recently purchased the above product.
My intention was to link my Tivo box via optical cable to the TV optical input.
This works fine.
But I was also wanting to connect a Uplus Bluetooth product to the AUX port .
This was to allow me to play music from varios sources.
This does not work ?
My understanding was that if there was no input to the TV input the it would use the AUX input.
Am I missing something

Hello BGS,

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