I have a 2005 Suburban. The horn sounds really lame and weak!! My whole family has complained about how weak, lame, and embarrassing it sounds, especially coming from a truck.

It had Fiamm high and low note horns, which I assumed were after-market. I found out later that they are actually Delco horns.

At any rate I replaced them with the A & F note Delco horns that go in a 2005 Deville. I love the melodious sound of the Cadillac horns. To my frustration the sound was exactly the same.

Can anyone offer me some help with this dilemma?

 

add a second set of high and low tone horns. That'll give you the caddy sound your looking for

 

Go up on ebay and get you some of those "locomotive" horns. Then get your family members gathered together in front of the truck and let them have it.