I don't know the development history of the ECM/wiring harness. By 2008, the wiring seems to be multiplexed. (One wire communicates several items of information.) The auto turn signals required WAAAY too much attention, never knew when they were on when I didn't want them, and off when I did want them. I pulled the wire from the plug to the TSSM and fixed the problem, but the Check Engine light and security light are now on continuously. I hated the auto signals so much that the end result was OK with me. I took the lens off the speedo and put some almost invisible electrical tape over the offending lights and am now very happy with 100% manual control over the TS. You very well could have the same results on your machine., will it be worth the unintended consequences to you? There are threads in several different Harley forums on this. I only have the 2008 RK manual and I have no idea what color the wire might be on a 2000 scooter. Don't have time at the moment to look up the description of the 08 wire, will try to get back later.