Horn replacement

I have a 1987 B2200 pickup with over 260,000 miles and in decent shape. However the horn stopped working recently. Can anyone tell me where the horn is located? Thank you.

The horn is located behind the front grill. I think on the passengers side. I had to replace mine on a 1986. but after finally finding original one and removing it I relocated in the engine compartment on the driver side wheel well. This move of course required the install of some wiring, so I used a old household extension cord cut to fit. Good luck