quick question. i have a yamaha receiver. with speaker a/b option. I have some nice polk speakers hooked up to it. my sisters emerson 6 cd changer broke so i took the speakers that came with it. there is speaker wire coming from the wooden back but no place to hook up wire. Is it ok to hook additional wire length up to the existing wire and then into my receiver speakers in the kitchen using speaker b option? just want to make sure this wont be a problem or ruin anything. thanks.