UPDATE - added instructions for access from under the car.
............ recommendation of several of my Leaf owner friends, I decided to try the
FIAMM 74100 El Grande - Twin Horns. At $16.60, they are a real value, they sound like my old 68 Buick, blast at 110db, and have a real tone of refinement. These horns are PnP, and don't need a relay to operate.
Accessing the horn from under the car - Thanks to Tony Williams for use of his underside photos
This requires you to crawl under the car to remove the front underbody panel. This is probably best done by driving the car up on ramps, putting the car on jack stands, or on a lift. Use extreme car when working under the car, make sure that the parking brake is set, and that your lifting method is secure. Proceed at your own risk.
After you get the cover removed, the horn is accessible. Note from this view you can see the bottom of the coolant overflow tank.
The stock horn is held on a short bracket that is bolted to the center brace with a 12mm bolt. Take out the horn and bracket, and disconnect the power and ground leads.
The new horn assembly had to brackets to hold them apart, bolt the brackets and a ground lug to the horns securely. A good idea is to add a drop of Loctite to the horn bolts. Make sure that when you install your horns, that they are pointing DOWN, so they don't collect water.
To wire up the new horns to the existing wiring, I made a short pigtail for the power lead. The stock ground line goes to the ground lug that is bolted to the horn bracket.
Make sure that that the single power lug (which plugs into the existing horn power connector) is a male blade and not a female like what I have on this photo (Duh!)
Now you are ready to install the new horn assembly. The two horns and their brackets get bolted to the original horn bracket, and that in-turn gets bolted to the car's center brace. Connect your power and ground wires to the power pigtail and to the ground lug respectively. (Don't mix them up! The ground wire is the
LONGER wire.) I stuck a piece of shrink tubing over the power connector to pigtail connection, just to make sure there was no chance of shorting. I would highly recommend this.
Give your new horns a try, and if they work, ........you are done!
............For me this was the best $16.50 and hour of my time that I have spent all week!
They sound great. Get a pair and see for yourself!