My house is prewired for 7.1 channel sound system. They have provided coax for the subwoofer. My receiver has line level (RCA) inputs for subwoofer. I need advice on two connections, 1) from wall coax to receiver line level (RCA) and 2) on other wall, coax to subwoofer line level (RCA). Following are the links for my receiver and subwoofer.
http://www.amazon.com/gp/customer-media/product-gallery/B0002KVQBA/ref=cm_ciu_pdp_images_0?ie=UTF8&index=0&isremote=0
http://www.amazon.com/Onkyo-TX-Channel-Certified-Receiver/dp/B004O0TRD8/ref=sr_1_3?s=electronics&ie=UTF8&qid=1339033601&sr=1-3
http://www.amazon.com/gp/customer-media/product-gallery/B0002KVQBA/ref=cm_ciu_pdp_images_0?ie=UTF8&index=0&isremote=0
http://www.amazon.com/Onkyo-TX-Channel-Certified-Receiver/dp/B004O0TRD8/ref=sr_1_3?s=electronics&ie=UTF8&qid=1339033601&sr=1-3












