The horn on my 2000 stopped working. However the alarm is still functioning but it sounds more like a very weak VW horn. Has anyone ever had this problem? Is this an easy to replace?

Usually happens to people that play in mud/water. The horn is easy to replace. You can buy the exact same horn at most any auto parts store, it's a Fiamm model.

Brent

The one problem is the way it's mounted..It's facing down and like Brent said if you do any playing in water/mud it'll get inside and ruin the horn..I've been thru many horns already.So I decided to try something with the new one.What I did was put a piece of cheese cloth over the opening allowing water to still drain out yet keeping the mud out and so far it's worked.

The alarm horn is separate from your driving one. I tossed mine and bought a loud air-horn.