Why is my horn blowing continuously when I try to drive or back up?

What is your question?

I unlock the drivers door, put the key in, start the car. Then when I try to back out of my drive way or drive anywhere, the horn starts blaring continuously only stopping after a few minutes. I want a straight answer to fix this myself. There is a chirping high pitched noise in the front passenger side.

How long has your 2008 Chrysler Pacifica had this problem?

A couple of weeks