I'm trying to hook my Sony Wega up to my Onkyo hts650 receiver. However, whenever I do, I get a terrible humming sound coming from all of my speakers and the sub (but I do get sound). I hooked up a pair of RCA audio cables to the audio out in my tv, hooked the other end into the video 2 audio inputs on the reciever, turned off the speakers to my tv, and set the audio out to "fixed". Any suggestions as to what I should do? PS: An semi-related question, can a tower FM antenna degrade the signal going to my speakers if placed right next to the reciever?