Morning! I am in the middle of setting up a Denon 1909 with some Onkyo 7.1 Speakers. I have got a load of Belkin 16 gauge speaker wire. However, this isn't coloured, so I was wondering how I kept polarity, or do I not need to worry about +ve to +ve and -ve to -ve? The fact that the speakers and Amp have + and - signs has me confused!!!!! Thanks in advance for your assistance.