Here's what I did Jerry.....
2007 Speedy taillight mod & install on 07 BA Enjoy....BTW it does improve the aesthetics of the rear profile on Black Beauty

The turn signal connectors are individual 18ga. bullet type (couldn't tell ya the actual part # tho), the tail/brake light is a 3 wire (shared ground) bayonet type. It's an easy install once the stems have been turned down. Took about a half hour and several

to cut,turn & die the stems down. about 10mins to reassemble the stems to the tailight nacelles & mounting braket, and about 20mins to splice, solder, and final the whole shebang onto the bike!
