New horn no beep

Thanks in advance for helping me sort out more electrical black magic.

New horn new harness/relay kit, new button. If the hole wasn't drilled in the dash, i wouldn't waste anybody's time looking for help.

I cut the harness ONE wire at a time to fit the boat so nothing is crossed.

So far i cut 30 red, 85 red, 86 black and 1 of 3 black wires that come out of the center of the relay plug.


--30 is fused and run to hot.

--from the middle of the plug there are 3 blacks 1 is clearly a ground that i shortened and crimped on a new ring terminal

the other 2 blacks are still in looms with 2 red 87 wires

the relay does not have a spade that goes into the middle slot in the plug


--85 red to button (that has 5 spades) the middle 3 are nc and no i have continuity when the button is pressed.

--86 black is not in the directions.


there is voltage to 30 in the plug

there is no voltage to 85 red

there is no voltage to either 87 reds


continuity exists thru all wires back to the plug.


no idea no clue no vowels or swear words left,

what did i do wrong ?

how do i make it beep ?

what do i need to get ?




Pinching #30



#30 is fused



Hot 30 and ground from center of plug now disconnected



Disconnected ground



Red 85 black 86



Macho Grande horns from fiamm



2 reds from 87, 3 blacks from the center of plug 2 are in looms that go to the horns. 1 black was clearly a ground



2 reds 87 and blacks from center of plug for the horns



New button-- the 2 terminals with blue ink have continuity when button pushed, no direction with button, no idea what the other spades do.

The directions came with harness relay kit



Came with horns



Came with horns



Double checked but no clear button wiring or black 86 direction



Relay on left came with horns, both relays are the same

You should have 12v at 30 and 86 all the time.  At the plug with relay out ? It should be there with or without the relay connected.

 When the button is pushed you should have 12v at 30, 86 and 87. There is always 12 volt at the 30 plug, 86 and 87 will be hot with relay in and button pushed right ? 86 should be hot all the time.  87 only when the button is pushed.

thank you for the help, it was 86 black like you said, connected it to 12 volt source and it works great.
totally stumped, figured it was black and therefore a ground. Really appreciate it.

got dual usb charger and the horns completed, twisted the pairs thread them thru added 2 cushion clamps and 4 zip ties, keep it clean-'ish'

Everything you'd want in a horn loud and obnoxious, (the delay must be in the camera)

https://youtu.be/c7B2fhRAuxE