360 Alarm Horn

do a search for alarm siren or "silencing the red LED"

tons of info available on this subject

 

…but still only one real solution - Buy a new, likely also old, horn from Ferrari.

 

go here - https://www.ferrarifobs.com/sirens

he has a reasonable priced alternative

 

I put a chevrolet Corvette siren in mine 10 years ago and haven't looked back.

 

But those GM sirens sometimes cause goofy issues?

 

Can't say I've had any issues with the $20 one I installed. I suspect some of the goofy issues are more due to the pimpin' sound systems and other electronic crap that people wire into their car. That and the "I can spend $100k for a car, but I don't want to spend $150 bucks to replace a battery that's 10 years old".

 

do fully understand

as long as it works you are doing great