Keyboard Static sound issue

[Yankeemix]

I have my Motif connected to the 003 Console 5/6. When I play the keys on the keyboard there is a static sound ? I also have humming sound while the keyboard is on and audio cables connected.

When the keyboard is off the humming sound is gone, however if I turn the volume way up I can hear that same static noise. If I unplug the audio cable from the console then it's gone completely.

I also have this issue with the monitor knob on the console. There is a loud static sound every time I turn the knob.