There is a manual button. Check the example and you'll see at the bottom it says MAN for manual. Don't feel bad I forgot myself if I added one and had to check.

You've already sold me as im just reading and i will install it my on my new sar boat. just curious if there is a fourth button for a manual mode, or if thats something that will be coming. PS id check but im busy rn

You hook up a 1x1 monitors output to the composite input on the controller.

How do you input a 1x1 monitor? theres not Composit output

Awesome little system to add to your build. Highly recommend.

It's almost like i mentioned its meant to be hooked up to a 1x1 monitor. You press what mode you want and then at the correct intervals and spacing it sounds the horn for that condition.

How would a auto horn work?