Fitting air horns to the Trophy.

[HACKLE]

I had purchased a set of air horns quite some time back, the plan being to fit them to the Trophy. Set consisted of compressor, two trumpets, relay and a length of hose. I'm sorry there are no photos, so please don't ask for them. These are the same as I had fitted to my Toyota tray back 4WD purchased in 2005. I can say that they are "VERY" loud.
  I'd been delaying this fitment because of my concern re the removal of the LED driving lights fitted below the rear view mirrors. Anyway with plenty of time because of the restrictions in the Covid lock-down I removed the right side fairing and associated bits to get access to the original horn, and give me a better look at possible fitting locations.
   It's amazing how long you can sit and look at the bare engine right hand side trying to see a fitment point. I decided that the compressor could fit alongside the top of the right [sitting on the bike] side of the radiator. With a small bracket I attached it with the relay below it.
   Next came the trumpets. Where the R & G Crash Bar brackets come off the engine there appeared to be enough room. I joined the two trumpets together with a small flat piece of steel. Then by moving the shorter of the two trumpets lower so that the bell mouth on the shorter was level with the bell mouth of the longer trumpet i was able to slide the piece of joining metal between the two crash bar supports, to a point where they could go no further in.
   This just left me with tying both bell mouths rigid by a couple of cable ties. The larger bell mouth round the mesh support to the bottom of the radiator [page 11.2 of the cooling section in the workshop manual], the shorter to the right fan bracket. Both were nice and tight. My only concern might be the heat generated by the engines to the plastic trumpets. I would have to check this on a long ride when I can get out.
    Next stop was to my local auto electrical mechanic [ sorry Digital my expertise with all things wiring, falls well short of yours]. A short while later [couple of hours] and I got the call to come and pick up the bike, all done.
   I ran the bike up to fan engagement temperature and both trumpets remained cool enough. Whether this would be the same with the fairing fitted remains to be seen.
   Back home to fit the fairing and ancillary bits and pieces. Everything went back together OK. The horns fit behind the mesh on the side of the fairing with plenty of room. I might add that the fairing and infill piece beside the radiator had been put in place [not secured] many times to make sure everything fitted prior to the wiring being completed.
  As on my 4WD Toyota these horns are "BLOODY LOUD". Ear piecing loud. That's what I wanted. Now I'm waiting to be allowed out to go riding [Covid lockdown] with the "HOPE" that I can use these ear piecing loud horns to let some car driver know not to intrude into my "SPACE" again.
  I probably won't ever get the chance to use the horn in anger. But as my good wife says. "It's better to have it and not need it, than to need it and not have it". Cheers. 

[digital]

That's all very well HACKLE, I fully understand your auto mechanic had to do it.

They are not difficult connections, since it is simply to take directly +12 positive volts and introduce them to N and NO of the relay and inject the two wires of the original horn directly into the coil of the relay, then there is the option of whether to use the same original switch or other optional.

But if your mechanic does it right, no problem.

Anything for safety is good. It's a shame that any 50cc moped honks its horn louder than a trophy.

His lady says some very wise phrases.
Regarding the temperature given off by the engine. If they are separated from the metal parts of the engine. It will probably not have problems once it is in circulation, since the ambient air is in charge of cooling, my concern would rather be with the engine at idle, in traffic jams, cities etc.

Anyway, I know that you, in all situations, will be checking it.

[HACKLE]

As you say Digital, I fully intend checking it in the stationary position for extended periods. That will as I said have to wait for the closures to end. In regards to my wife's comment. She certainly is smart, SHE MARRIED ME didn't she. Just saying
, that's all. 

[digital]

HACKLE, a woman's love can do everything.

Let's see if the translator of the following saying leaves it as I hope!

There is a saying that goes like this: "2 tits pull more than two horse carts". 

I think it is understood …

[HACKLE]

Digital, I love it. I trust you'll approve me using that saying. 

[digital]

It's just showing that saying at the right time.

I have a friend who whenever he sees several friends laughing, he approaches and says: you are already talking about women. He says that when a conversation is about women, there is laughter in between …

How do the installed horns work?
Do I connect it with auxiliary connector or use the serial switch?

[HACKLE]

Digital, the original horn button is used and I believe the auto electrician took power from the original wires to the original horn. Cheers. 

[digital]

Installing the relay, no problem and fine with me Thank you.