I believe the sig gen is the same on 04 up to 09. I know for sure 03 and back used a different one. My bikes an 04. The only one i can find at the momemt is for 56$ plus shipping. Used. Thats a load of bs its a magnent with some wires coming out or it. I understand these things are machined to specifications and they are no longer made, so lets not get into that.
If youve got one let me know what you want for it. Anything less than 56$ plus the 10 or whatever to ship and i won't complain. Be much appreciated, then my bike will be running again.