Today I fitted 2 horns. (One to each of my work van and one to my camper.)
Fitted this cheapo horn to my work van:
Fitted this one in my camper:
Not sure the PIAA horns were worth the extra money, as perfectly happy with the cheapo horn sounding like a train horn! (The PIAA horn sounds more like I'd expect from a BMW, Range Rover or something, but who wants that when you can sound like the Eurostar?
)
View attachment 179789
The only faff with fitting the cheapo horn was that it was a bit heavy compared to the PIAA. I consequently didn't trust the thin plate that the existing horn was mounted. (I did away with the thin plate and fitted the new horn to the main bracket. I needed to use a long M8 bolt and three nuts which I used as shown in the photo. This allowed the thing to be orientated and secured properly.)
The PIAA horns were fitted on the thin tin plate in the exact same location as the original horns using a thin M8 bolt.
My method of fitting the new horns was as follows:
Jacked up van with drivers side front wheel removed.
Removed push fit arch fixing with a trim tool.
Remove all 7x T25 screws as follows-
3 x Bottom front of arch liner
2 x Front of arch liner.
1 x Centre's top of arch liner.
1 x arch in front of suspension.
Pull liner back to reveal old horn.
Remove old horn using a 13 mm spanner.
Cut the wiring as close to the OEM plug as possible.
If wanting to fit new horn to the main bracket and not the thin plate, use a T50 to remove the thin plate which will allow you to use the main bracket.
Crimp horn connections and fit new horn, making heat shrinks with hot air gun.(Brown is neg on OEM wiring)
Put everything back together and refitted wheel and enjoy not having a horn like Noddy!
View attachment 179791
I didn't use a relay or additional power supply and am happy that the OEM 2.5 sq mm cable is fine for any horn up to 20 amps or so.
Hope this all makes sense.
