Wiring schematic

Is there anyone who can help me with a schematic to hookup my toggle switch to my factory horn of my 2003 Chevy Silverado. I tried to hook it up but it doesn’t work. I followed the schematic from hornblasters?? Kinda frustrating…

you should be able run from your positive lead of the compressor to the positive lead of the valve and the toggle switch just in between the two

try this