Hello I have a sony dream system all in one home theater. I was wondering if upgrading the speaker wire would make much of an improvement over the speaker wire that came with the unit? Also, On back of the unit the speaker wire connects using these color coded connectors. I'm wondering If they even make speaker wire that can be plugged in like this? Or am I stuck with the wires that came with the unit. If someone with more knowledge than I have could please help me with this it would be greatly appreciated.