Review on Fiamm 5190512 Marine Horn: Durable Stainless Steel Grill, Pack of 1 - Powerful and Reliable Sound! by Brian Kumar

The kit should include screws and possibly a template so you can cut the hole. Had to make a trip to the hardware store to find stainless steel screws to install. I installed mine on a pontoon and chose not to install it on my logs where the factory is installed. I think this kit will work if you install it where the factory horn is and reuse the factory screws. I'm just sending my experience.