Were was the hailer horn mounted on a 340 DA?

[Ka1oxd]

When I got the boat, there was a dual trumpet horn and a hailer horn down in the galley on the counter. The trumpet was the cause of the leak in the headliner, but I cannot find where the hailer was mounted. I fixed all the mounting holes so the water stops from coming in and found those wires. I have been searching for where the hailer wires were and cannot find them yet.

Anyone have an idea where it might have been mounted so I can look for the wires?