Adding Bluetooth to an old stereo - will this work?

Hi,

Sorry, newbie question:

Can the Logitech Bluetooth Audio Adapter be added to an old Sharp CD-MPX 100 stereo (which I'll be receiving shortly for free)?

I've attached a photo of the back of the stereo (an image I found online, as I haven't received it yet). I think it says AUX. Is that an audio input? Probably a dumb question, but I'm here for help.

https://www.youtube.com/watch?v=3Am9psYGt2E

At 2.30, he's talking about connections.

https://www.logitech.com/en-nz/product/bluetooth-audio-adapter