what kind of connection is this?

[wonderer]

hello, i'm new here

i found among my father stuff some lights switching with music
but audio in is very strange to me and i don't know how to plug my stereo to try if they still work
here is a pic


do u think it's possible to substitute them with jack or rca?

thnx

 

[mtrycrafts]

hello, i'm new here

i found among my father stuff some lights switching with music
but audio in is very strange to me and i don't know how to plug my stereo to try if they still work
here is a pic


do u think it's possible to substitute them with jack or rca?

thnx

Doesn't seem you are getting anywhere with this.

This is a picture of outlets on that box that flashes lights with music? If so, it may be some strange old, home made? plugs for speaker cables? Not really sure and you should proceed carefully.