winston69

iTrader: (30)

Has anyone got any wiring tips or guides? Thanks folks

jayp3288

Where do you get these horns from!??

winston69

iTrader: (30)

EBay or second hand off here

alcazar

iTrader: (2)

Easy enough to do.

Pull off the wires from the old horns, tape one up. (there is only one really and it loops from one to the other). Now plug the remaining wire onto terminal 85 of a standard on/off four terminal relay. Take a short length of wire from terminal 86 to a suitable earth. Check that, when someone presses the horn, (don't forget to have the ignition ON), the relay clicks.

Now run a length of decent wire, as short as poss, but not tight, from relay terminal 30 via a 25A fuse to the battery, and finally one or two lengths of the same to the new horns, and earth the horns if necessary.
Mount the relay and fuse somewhere suitable, mine used to sit on top of the battery, face the relay terminals rearwards, it helpd to stop water ingress

winston69

iTrader: (30)

Cheers fella

Can these be wired up just using the original wiring or not then?

steve ex vauxhall

iTrader: (5)

No mate, do it exactly as Alcazar says and you won't have a problem

winston69

iTrader: (30)

Is it possible to daisy chain the positive to the horns or run two seperate wires direct from the relay?

winston69

iTrader: (30)

Also how decent does this need to be? Same stuff I used for my driving lights adequate?

steve ex vauxhall

iTrader: (5)

I daisy chained mate

And used the same stuff

tubbytommy

iTrader: (20)

i did exactly how alcazar says above and its been fine.
not a classic but it makes no difference

alcazar

iTrader: (2)

Yes to daisy chain, and yes to the wire from driving lights.

In old money it was called 28/012", the new stuff is 28/030mm, 2 sq mm, carries up to 25A.

winston69

iTrader: (30)

Cool thanks
Any tips on mounting points for the horns, they're a lot bigger than I expected!

winston69

iTrader: (30)

How did you mount them?

steve ex vauxhall

iTrader: (5)

I've not got them mate.
I have 2x Hgv air horns

But their wired the same way

I've seen some that have had brackets made to fit, and some that have been badged on

Did you not get any fitting kit with them mate?

winston69

iTrader: (30)

No mate, second hand off here

steve ex vauxhall

iTrader: (5)

Mmmm, your needing a photo off someone that's got them then fella.

Come on chaps, help the guy out

winston69

iTrader: (30)

Found one