Where is the horn located on a 2001 Chevy silverado ext cab?

There are two horns, One is below each turn signal. The passenger side can be gotten at from below easily. A 10mm wrench is all you need. The D/S horn is harder to get at. You may have to pull the turn light housing. It just pulls out. Squeeze the plastic clip at the outside end and pull. I know all this because I just did it on mine. The P/S horn is dead. Now I just need to find a reasonable price for another one.