[Che]

G'day guys, it's been a while. I've had a few spanners in the works over the last few months, but it's time to play cars again.

Anyway, I need a schematic to install a relay on my air horn. Can anyone post one up? I've got a fair idea what I need to do, but I just want to confirm the circuit before I go too nuts

[want33s]

Hook it up as normal but put constant power to the trigger on relay and hook the earth to the horn button.

[royce]

Havent you already done one of these?

Take the 2 factory horn wires, plug one onto pin 85 and the other onto pin 86
Run a fused battery power line to pin 30 and then power your horn from pin 87

[Che]

Last horn I didn't use a relay - I just replaced the circuit with 30A wire. This time the car is a bit better organised and I have a bank of relays for all my hi draw gear.

Horn relay works now, thanks for the tips guys.