Powered Subwoofer Wiring How To Wire Home Theater Powered Subwoofer?

How to wire home theater powered subwoofer? - powered subwoofer wiring

I have an active subwoofer with RCA and speaker level output level and speaker. The receiver is modern, and sub RCA outputs 5.1-speaker system. My question is that I have all the speakers to the receiver, and RCA is only for the under-or should I connect the speakers to the output level of the subwoofer / tickets in touch?