further to car horns,my wifes new to her 2015 mazda 3 only has one low tone horn from the factory and its like a warm flat low alcohol beer!!,on forums even the higher end 3s only had one anemic horn and its a thing on forums how to add or replace the horns,they all say you HAVE to remove the entire bumper and grille assembly and youtube shows how etc,i had a very similar size Fiaam brand horn sitting around and managed to with some fangling and reaching through the lower chin grille get it up into position quite easily,i trimmed bout 3mm off the widest part of the trumpet mouth and cut the mounting stud as short as i could and still get 4 or 5 threads holding,then with ninja stealth and English Winston Churchill never give up attitude and a telescopic magnet managed to Houdini the second horn into place!#$%*!why dont they just put twin horns on them?i thought its kinda normal on cars?