How many horns does the camry have? i'm replacing it with a truck horn i got from pepboys as a gift. I hooked it up to my foglight switch so i know it works. I wanna hook it up to my horn. I plugged in the wires from (what looked to be the horn) right behind the grill, grounded the negative out and then i beeped the horn. I heard the old horn coming from somewhere by the drivers side. How many are there and whats the proper way to add a new horn by replacing the old one. Thanks!