I have the promedia 5.1 klipsch subwoofer with a volume control plugged into the subwoofer for my computer. The subwoofer hooks up to the soundcard and the speakers hook up to the subwoofer. I am trying to hook this up to my amp. I hooked up the sattelite speakers separately to the amp, then hooked up the connection from my subwoofer to my amp with a rca connection adapter to the amp( this wire says on the subwoofer its for the center and sub) my speakers work but not my sub will this work or do i have to buy a new sub or do I need to hook up the speakers to the subwoofer if so where or how do i connect the other 2 wires.