Noise bars and faint crackling in audio

[Dan Starnes]

My 1958 GE has annoying noise bars which scroll up the video and some faint crackling in the audio. This is a 3 speaker set. I cleaned up the connections in the audio @ speaker points. No change. Other sets connected do not have any noise bars. Noise bars are present whether it is dvd/vcr or convertor. I hooked up a video generator and no noise bars. Now should I look into audio circuits more? I guess I am saying since the signal generator did not produce noise bars, due to its lack of audio transmission, there is nothing in the video circuit contributing? Or am I just completely confused, which is most of the time, but I am happy. Pic below,, yes the video generator needs recapped, but it generates lol