Steve, When replaced my switch 3-4 years ago I did a lot of research into the various switches used on 1st Gen Birds. There was a boatload of turn signal switches. I do recall an extra wire (gray wire)on my new switch I ended up with, which I cut off because it is for the column shifter lamp (possibly the difference in 8 vs 9 wires). I also recall a straight connector on one of the replacement switches and an adapter to meet the curved connector. Look at the Classic Industries Catalog. One of their switches has an adapter shown.