2005 Impala Horn Replacement

I have a sick sounding horn in my 2005 Impala. Dual note setup.
I need to change the horns. Where are they and do I have to do major
surgery to fix them?

Thanks
John

Pull the Passenger side headlight. They are right under it. Make sure theres no water in them, has happened to mine too many times, and they still work fine after I've dumped it out.