Can-Am Flasher and Horn Kit 715001358 help!!

Hi all, I just tackled the Can-Am Flasher and Horn Kit 715001358 on my 2016 Outlander Max XT. Was quite surprised at how "plug n play" it is. But I have some questions. The turn signals and flashers/new control grip work great! But, I do have one serious problem. The horn is stuck on! Has anyone else installed this kit? Perhaps someone in Europe? Seems not to popular around here in the USA. I had to unplug the horn for now. Who has installed this kit before? See the attached pic. The wire harness is completely modular and plug n play. But I have the horn hooked up here and the horn button seems useless. What’s wrong here? What is that little screw? Do I have to ground the horn somewhere? There is also a complete separate harness which can be seen in pic. Is that just a spare for more accessories? Looks like the same plugs as the horn.

Also, it seems there are additional plugs for something called position lights. I believe they fit on the front beneath the turn signals on the new shroud. Anyone know what part number they are and what purpose they serve?

THANKS!

Attached Images
File Type: jpg 20160423_153116[1].jpg (3.33 MB)