2001 Mercury Cougar ZN problem

I have a 01 Mercury Cougar ZN. I installed brand new horns about 6 months ago. All of a sudden the horns stop working. I checked all the wiring. There is still current going to the horns. When I activate and Deactivate the alarm the horn sounds off and works normal, But when I press the horn from the steering wheel it doesn't want to work. I checked all the fuses and relays and there all working.Does any1 know what the problem is. and does any1 know what type of screw driver will take out the screws to the horn/airbag. It doesnt look like torgue screws,phillips, flat head, or an allan. It looks like a triangle shaped head. Help please.

I am sorry that I do not have an answer for you but I have the same vehicle and was wondering if you have had any problems with the paint?

I dont have a problem with my paint job, but The paint on my hood have very little tiny scracthes that you have to see up close from like sand, gravel, pebbles from the road hitting it. But nothing major. Is your Vehicle the same model ? B/c I have the ZN model and it comes with a Unique Paint job. its a ZINC yellow. Only car that comes with that color that i know off. Can also be known as a Chrome yellow. but not that much.

Yes, my car is the ZN model also. I love my car but I did have a problem with a paint crack on the rocker panel under my door. I had to do alot of bitching but Ford/Mercury finally decided to take care of it. I have been keeping an eye on it from now on.

I take really good care of my car so I felt like it should not have done that. It doesn't even have that many miles on it.