There is a reason it broke. You will continue to have a tough fix until you decide to post pictures or honestly answer the questions. I like to help people but hate the truth or consequences game.
Ok.if only i had a smart phone and not a flip phone, anyway when i was checking for anything loose i moved the ground connector and it popped out with about 2 strands of copper showing about 1/16 in lengnth. i could shove it in and get a good horn but it would never stay in so that's my problem .
You need a new turn signal switch which comes with the wires attached. No repair parts available.