Check your ground wire.making sure it has contact with metal and not paint, plastic or ruber. Maybe use a different location for grounding. If that doesn't cure it, you may have to use resistor type spark plugs.
As far as speakers, all I can say from here is recheck the wiring.
Welcome to ToyotaNation:welcome:
As far as speakers, all I can say from here is recheck the wiring.
Welcome to ToyotaNation:welcome: