Connecting a sound system to the mini m1 2020

Good Evening. :-)

(My text got lost, so there is a second item with pictures only...)

I've got the new Mac mini m1 and an older sound (multimedia/home cinema-) sound system

with an integrated 5.1. amplifier (Motiv 5), and a decoder-station, both made by Teufel.

I would like to know if there is a way to connect this devices.

Maybe there won't be any surround sound but halfway acceptable stereo quality

would be enough for me ... at first.

Would that work? And if so, what do I need?

Thank you very much for your support!