Looking at a Japanese site, I noticed that the Land Cruiser Prado had optional Premium Horns, so I ordered a set. Install was simple, remove the top cover and unbolt 2 x 12mm bolts and plug and play.

he sound like Hella horns, a tad louder, I think it sounds better.

Toyota Part Number : 08522-60020

Found on Youtube

j0.

BTW the 1st pic is the stock horns, and how easy it is to access, once the top cover is off.

 

Sounds exactly the same.

 

I had cheap air horns from Pep Boys on a car and it was intimidating. I also installed a home security external siren on a car and again it was intimidating. I can do better than this

 

With all the space under there I was actually thinking of an air horn. IMHO I think its louder then the stock, and plug and play, and I don't have to cut the harness.

j.