This is an area where an added relay can make a big difference. Simply
installing a relay down by the stock horn can result in a much louder
and more reliable honk. No new wires need to be run. Dead simple.

That is right, the stock horn can be made much better with a $4 relay.
The stock wiring path for the horn is very long and relies on the
steering wheel horn contact ring to carry the horn current on the ground
leg. This makes the horn less reliable and reduces the loudness.

Use the horn button ground leg wire to trigger the relay you mount down
by the horn instead of having it ground the horn itself like stock. No
new wires need to be run between the horn area and the dash area.

Mark