NICEST Car Horn Ever- DIY

This horn is SO courteous my car was granted Canadian citizenship yesterday. Check out Bob’s video: My buddy Howard does this for a living: Links to the stuff I used (not sponsored): Sound board: =oh_aui_search_detailpage?ie=UTF8&psc=1 Buttons: =oh_aui_search_detailpage?ie=UTF8&psc=1 Amp: =oh_aui_search_detailpage?ie=UTF8&psc=1 PA Speaker: =oh_aui_search_detailpage?ie=UTF8&psc=1 12V to 5V: =oh_aui_search_detailpage?ie=UTF8&psc=1 Train Horn (not my exact version but this will work well): =sr_1_4?ie=UTF8&qid=1497644803&sr=8-