yup

 

OK so enlighten me please

 

Does this help by clarifying which wires should be red and which wires should be black?

Ignore the red dashes I put next to the 12 AWG.

 

got it it works

 

12 AWG (thicker) wires to and from battery, and, to and from the compressor.
18 AWG to the horn from the relay...

Anything connected to the positive (+) side is RED wire, All others are black.
Higher current loads and supply use thicker wire, the 12v horn has changed from stock low amps to the higher current aftermarket horn. So the (+) side needs to be upgraded to 12AWG.

This was really confusing for a second, because i was viewing in dark mode. Had to switch to light mode to see the components.

 

Think of a relay as a on/off switch for the new horn. Your thinner stock horn wires used to turn the horn on when you pressed the horn button, but now they simply turn the relay on. You need to run the thicker wires from the battery to the new horn (through the relay) because the new horn requires more current than the thinner stock wires can carry. The horn button tells the relay when to turn the power on for the new horn to sound.

 

I am in dark mode too, was trying to figure out what was up w/schematic

 

Looks like very straightforward instructions to me, especially compared to the vague gobbledygook that comes with an OEM Harley Davidson electrical accessory...

 

What I figured is OP should not be messing with electric.

 

we all started at some point. No such thing as a wrong question.

 

@rkevinsdad If you want us to help you, then you must participate in the thread...

What don`t you understand in the instructions?

 

can you figure this out?????

Yes I can, the circuit is operational once the ground is complete.