I have a couple of pretty powerful 2.1 speaker setups - at least they are more than powerful enough for my small living room. MY mobo has built in 5.1 sound card with x number of 1/8" jacks. Is there any way to rig up a harness to connect the 2 2.1 speakers to make it a 5.1? I know that i would have to add a center speaker in there somewhere.