I purchased an IGT Austin Powers from an ebay vendor approximately 3 years ago.
It's in exellent condition, except for excessive static in both speakers.
It comes & goes.
I had asked the vendor about it upon delivery, & he assured me it was a trait of "ALL" IGT machines.
I can't believe that would be the case.
So I've checked my connections: None are lose, dirty or broken.
No visible corrosion, I sprayed the connections with a can of Dust Off, just to be sure.
There are no cracks or wear in the insulation of the wiring.

Anyone have any ideas as to what I'm missing? (dice?)

Maybe a new set of speakers, new wiring... both?