I thought they had a plug and play unit. You had to cut/splice wires? If that is necessary, I'll live with doing a little computing in my head. He11, it will probably help ward dementia anyway.
Yes, they have plug and play for the Japanese sicles, but not most European bikes. You get a "universal" wiring kit. In fairness to the Speedo Healer folks, it was a bit of pregnant dog to install on the Monster - not too many places to hide things! But, it is a bullet-proof unit once installed, and while I could compensate in my head for 10-percent the KPH to MPH really threw me for a loop.
Officer: The speed limit is 45 MPH. Do you know how fast you were going, Sir?
Me : Well, my speedo said 85...