I want to build a PC for mp3 playback hooked to big speakers

[honest cradle]

I bought an old touchscreen Jukebox with nothing but speakers included. it's got two big subwoofers on the bottom side and two mids and four small tweeters up top.
I need advice for 1.) Powering the subs and maybe mids?
2.) What audio equipment i need to get good sound. Sound card and DAC/AMP stack?
3.) replace the old speaker wire and add banana plugs?
4.) Touchscreen recommendations to replace the missing panel. 17" hole but can just frame in something smaller
Thanks yall for any input! I'm dipping my toes into audio stuff so any help is SUPER appreciated

[bitter cipher]

you don't need to have a dac on the thing really

a speaker amp might be needed for the speakers though

I'd say to just add a banana socket to the speaker circuitry, it might have a speaker crossover in which case you shouldn't just cut the wires that go to speakers and replace them with banana sockets

but instead add them to the beginning of the crossover circuitry