I'd say, 'Of course there is,' but I don't know that for a fact. The plug wires are straight stranded wire (as opposed to spiral core). Have been for along time. If there was an audio setup in the car, I would bet it would make a LOT of noise. There isn't one. The best tune to listen to when driving it is what the engine/exhaust/drivetrain generate.
The setup doesn't bother the various spark boxes I've used over the years. My EFI can be someone else's problem!