How to change your car horn?

i have and 03 altima and i was wondering how to change my car horn maybe to like a semi horn, ifs its possibleHow to change your car horn?
First you have to find it which happily is the easy part, have someone blow it for you until you find the location.

Now the hard part, a semi has an air compressor to which the horn is supplied air pressure along with the braking system so if you can imagine this a major system of a semi because who would honk a horn in a semi so long it would cause the brakes to lock up.

It is complicated, first you have to find or make an available drive pulley to which you will connect the drive belt for your air compressor, then you will have to mount a air tank that acts as (if you will) a reservoir for the the air to be supplied to the horn.

Now you will need to make a bracket system to mount the air compressor that will keep the compressor shiv in perfect alignment with the driving shiv under all driving conditions.

Then you have to find a way to mount the pressure lines that supply the horn with out interference to the other vehicle components that could chafe the lines causing an unsafe vehicle due to no horn for a warning device.

Hmm anything is possible but my ambition just run out.

Hope this helps.How to change your car horn?
Sure you can, those are called Air Horns, they operate on 12 volts just like your regular horn.



But the difference is, its comes with a small compressor, or a mini air tank with a compressor. You will need more room to mount it.
putting a real semi horn is really a pain to put in.... you have to have an aircompressor and an air tank then hook up an air valve to the horn.... just use an electric air horn... works good