The stock horns on my car FD were extremely weak. Yesterday I installed a set of hella horns (trumpet 2-tone) on my FD to fix this. After everything was installed I could not get sound from the driver side horn (low tone). I unhooked it and connected it to the passenger side wiring and it worked just fine. I connected the stock horn back to the wiring and it didn't work. I was curious if anyone else has had their driver side horn not work and what they did to fix it? Is there a separate fuse that I'm not seeing?

 

I ended up fixing this tonight. I was frustrated when I figured out the problem. To ground the horns I cut a short amount of wire and connected the free end to the mount. For some reason the chassis mount on the driver side was not getting a good ground, but worked just fine for the passenger side. So I replaced the driver side wire with a longer one to get to a different ground location and all is working.
These hella horns are much louder!