Have a Mackie 1402-VLZ3 mixer, a Vocopro Gig-Star, Vocopro PV-802 speakers, Vocopro Sub-1500, and KRK Rokit 8 studio monitors. Speakers, sub, and monitors are all active. The sub and speakers have only RCA connections. Need to know how to connect all of them. We want to use this karaoke system in church functions (parish halls, etc.). Any help is greatly appreciated.