So I just moved into a house that has had some speaker wire run through the walls in the TV room. The wires have banana plugs on both ends. I have a Yamaha RX-V371B 5.1 receiver. On the back it has 2 jacks (probably the wrong word) labeled "right front" and "left front" that look like they could take banana plugs. They're cylindrical in shape, one is red and the other is black. The other jacks are spring clips. These are labeled "rear surround" or and "front center". Here's the problem: the rear speakers in the room that are wired through the wall have banana plugs on both ends. Is it possible to put banana plugs into spring clips?