Horn

[til5101]

I've looked around the forum trying to find out where the horn is on a Mk3. I've got twin air horns I want to fit and need the wires off of the original horn. I've tried following the sound of it but just can't see it! I think it may be behind the fuse box on the N/S? Anybody know where it is? Is it simple enough to get to?

[3rensho]

I've been looking to replace mine too (the stock horn is a real joke) but alas it is well hidden. Behind the front bumper on the left side (viewed from inside). Can see it if you get it up on a lift and take off the cover plate underneath the car.

[til5101]

Sweet thanks 3rensho!

[theraphosa]

Sweet thanks 3rensho!

Let us know how you go on fitting those, hope there's enough space there, as I was thinking of doing the same thing.

[til5101]

Ive got the horns in, you can just get to the orginal from underneath. Ive appeared to have blown the fuse for the horn though :/ anybody know where the fuse is? I think its a 20amp?

[evdama]

Its a 15A miniblade, in the engine compartment fusebox.
Position F2 just in front of the middle of the 3 multiplug connectors

[Ol'Jeffers]

DO NOT try to run something like twin horns direct from
the standard wiring harness. Use the original wiring to the horn
to activate a relay, then take a new, separate supply (which is fused at around
25 amps) from the battery to the new horns via the relay.
If what I have said here goes over your head then find someone who is
competent with vehicle electrical systems.

[ffrenchie]

It definitely needs a relay to run the horn compressor, don't just try a bigger fuse or you'll melt the wiring

[MudFT]

......................... Ive appeared to have blown the fuse for the horn though ...........................

Whoooooooooooooooooosh!

[til5101]

It's all good! It's all wired in with the relay properly. I've got a 30 amp fuse between the relay and the battery. I managed to squeeze the horns between the n/s headlight and the wing and then cable tied them. I'd recommend fitting air horns the raphosa, purely for the shits and giggles when someone is not expecting it!