Atoolfool

CT Chevy, thanks for the reply much appreciated. I'd considered adding an air horn but as a secondary horn and still wanted to keep the oem setup, but with a better sounding unit. Being that the truck is practically new (4k miles) and still under warranty I didn't want to start messing with it too much just yet.

Mkeddie, thanks for the info.

New to the site, thanks in advance for your patience. I have a 2021 Sierra 2500 HD AT4 and love everything but the wimpy ass horn. It's kind of embarrassing. Has anyone upgraded their horn with something better befitting this big ass truck but still using the oem connectors?