Subwoofer for both HT and Stereo

Hi, I am planning to buy a G2 subwoofer and has a couple of questions on connection. I plan to run the G2 for both HT and stereo 2 channel. My HT is through Onkyi TX-NR809 and my stereo is through integrated amp Goldmund Telos 390.5.

Qn: While I understand I can connect the Onkyo subwoofer out to G2's .1LFE input, how do i connect to the Goldmund integrated amp as there is no subwoofer output? With the Neutrik Speakon connector in G2, do I connect the other bare wire ends to the red/white input on my goldmund for my left and right speakers? Does that mean I screw on the bare wire and then connect my speakers' banana plug into the goldmund? That means the goldmund speaker connectors are connected to both the Neutrick Speakon (by bare wire) and the banana plugs on my speaker cables.

Thanks!