Phantom Horn Honker

[mudbeast66]

I have a 99 Sonata 2.4L.

My airbag and horn are all one unit. I am having a problem with the horn sounding at random. First instance was this past December at about 3am. Horn going off and no one around, no one trying to break in. I had to disconnect the battery to make them stop. I assumed it was the cold making the pleather on the airbag shrinking enough to make it activate. Now that it is warmer, I hooked them back up and she is still going off at a whim.

Should I buy a new airbag, (not wanting to do that)?
Or is there a way to adjust the contacts for the horn?

Thanks in advance for your advice,

Mud