Grrr. i went to VIP to get an air horn, and they all are non compressed air horns. They brag about not having to compress air, and it runs of 12v. So that wont give me a big sound, like a compressed one would, right?
Ugg.

 

Compressed air horns are loud, no doubt about it. However, the better electric horns come close in sound intensity... and you don't have the problem of mounting the compressor.

 

But it seemed to have a regualr plug that you would plug in, in a household electric plug... how do you install that??

 

I have no idea. The air horns I've seen do not have a household electric plug.