Okay, heres the little wire that should come off your horn pad http://imgur.com/CGjNMBP

Here's how it should look http://imgur.com/a/OQDPe

And another thing that will be an issue with your horn is the little tab that makes contact with the steering wheel. if you pull off your plastics from around the column, you'll see a ring around the wheel and a little thing that pops out of the column. as you make 300,000 miles of turns, it wears down. there are tons of tutorials on how to fix that, this video should cover it https://www.youtube.com/watch?v=TjpKTgq9Vjs (make sure with your plastics off, you see it making contact)