I had my local dealer install the shielded headset harness from the 2003 and up bikes on my 2001 and there is no change. When you set the cruise you still get the buzz buzz buzz as it cycles on and off. I have grounded my engine block staright to the battery. Any other suggestions? I didn't notice it so much before I bought Arai helmets. I listen to music now at the volume of 5 to 10 where as before I had the vulome at 15 - 20.