Connect TV to built-in speaker/sound system

I inherited a house that has Built-INvisible home theater system. I have speakers on the ceiling of a living room. In the living room close to TV I have a Bose proprietary 9 pin wall connector.

In the attic I have a TA-2 theater amplifier and the 9 pin wall connector is connected to it with TA-2 Home Theater Amplifier Input Adapter Cable for input and Home theater Speaker Output Adapter Cable (believe this is connecting to the ceiling speakers).

How can I connect my TV to this system? I don't have the Bose media center.

Gemini/ChatGPT tells me that I can use a wireless adapter and connect the amplifier to TV or use a 3.5 mm Male to 8-pin mini-DIN Bose Link Cable? Which one would work and is the best option?

I have a 2019 Sony Bravia TV that I want to connect to.