Micca makes this one that might work: https://www.amazon.com/dp/B07DK2T6WH/ref=cm_sw_r_cp_apa_i_8HuwDbQB2VN2N

If your source is optical, it should be perfect for you. It'll take your optical, transmit it over Bluetooth, and output it as analog and pass through as another optical.

If you use analog, I'm not 100% sure if it'll work, but it might be worth a shot and then just returning if it didn't work. Hope this helps!