HELLA 940800821 Black 24V BX Trumpet Horn Kit (Universal Fit)

I used this Hella dual horn setup with an aftermarket One-to-Two Honda horn wiring harness (ULZOZN Car Horn One-to-Two Converter Wiring Fit for Old Honda Acura, Y Type Horn Adapter Wiring Harness) on a 2002 Civic, 7th Generation. These horns worked great and should install at minimum for 2001-2005 Civics with a single wire horn circuit. The aftermarket harness was not long enough to reach the passenger side of the car so I added about 4 feet of 20 gauge wire and loom. I mounted the second horn on the passenger side in an existing bolt hole with the lengthened harness zip tied to the bottom of the core support. I used the factory location for the first horn. I had to clock both horns for optimal install by loosening the nut on the ground tab to orient the harness plug where I wanted it, then tighten the nut back down. They were pretty easy to install overall. Functionally, there's no issue with the horns at all. They sound great using the existing OEM wiring circuit. I modified nothing on the original harness. 5 stars for the Hella dual horn setup with existing wiring, mounting and circuit.

These horns are a superb upgrade! They are much louder than the stock clown car horns in a 2025 RAV4. I have a RAV4 PHEV XSE, and I did not need the extra pigtail extension that is sold separately. These horns easily attach to the unmodified stock wiring harness. No need to cut the tape or cover or move the wires (in my car, anyway). One note: These horns ground through the mounting bolt, so if you want to test them when they are just plugged in but not bolted up, they won’t work like that.

Beepity beep-beep-beep, these horns are great! They have a nice tone and are loud enough to get the attention of the person in front of me who is screwing around on their phone at a green light. I also like to tap out relaxing bossa nova rhythms on them in my driveway. The perfect gift for anyone who likes sounds.

Re: HELLA 012010971 Black 12V Trumpet Horn Kit (Universal Fit-Blister Pack)Replaced the polite "excuse me" Japanese horn on my wife's Toyota Corolla with a "get the hell out of the way" horn. Note: each horn has two spade style connectors. You must use one as a ground and one to power. The mounting bracket will NOT ground these trumpets. I deducted 1 star for not providing a grounding wire or, at least, the parts to make one. I happened to have the wire, parts, and tool. Just had to drill a hole into grounded body metal and bolt in to complete the ground. I used an Amazon SEINECA 1 to 2 wiring kit to connect to the power side of each horn and back to the power cable.

Easy to install and works perfect. Great upgrade to the toy horn provided by Toyota on the Prius. Just note this only comes with the horn itself. On the gen5 Prius you’ll need to get the wiring harness for two horns for a Toyota (not expensive) and an M8 bolt to install the second horn.

Easy to install in 2024 Rav 4. And produces loud noise. It took a little bit of work to get the factory harness to connect , but nothing had to modified and no extra hardware or wires were needed

Amazon is wrong ! After reviewing the pictures and spec sheets for these horns I was 98 % sure that they would indeed fit my 2018 Honda Gold Wing DCT Tour motorcycle . They are very slightly smaller , fit on the original mounts , and the wires were exact plugs of the original wire harness . They fit perfectly . They actually are pointed in a more forward direction and are very loud . A higher pitch than stock horns . Best of all this set of horns was about $23 whereas the original Honda OEM horns are about $70 to $80 EACH . Just wanted to let people know these horns fit the 2018 Honda Gold Wing ( and probably other Honda motorcycles .

Like many others, this fit my RAV4 5th gen (2019+) with some small adjustments. I am a normal guy when it comes to car repair, I know the basics but rarely work on my car, so it took me longer than others. My biggest problem was removing the radiator cover clips (5 plastic push-pins) as they were brittle and difficult to remove in one piece. My install experience / tips:-Plan for 30 mins. You will need a wrench with 10mm and 12mm and a small flat head screwdriver to remove the clips (or a tool made to remove them).-Remove the 5 clip pins first: put the screwdriver under the inner push pin and try to lift it out. Mine would not come out easily, so I ended up removing these clips with a crow bar and they broke, YMMV.-Remove the 2 bolts over the radiator (10mm)-You can wiggle the cover off without removing the hood latch, it's very flexible and you will not break it. I first took a picture for reference which helped me installing it back later on.-You should see 2 horns on opposite sides. For each horn, remove the bolt that attaches it to the frame (12mm). This took a bit of effort.-Once the bolt is removed, reach under the horn and find the push the pin that connects it to the electrical wiring. It's a simple pin / plug and should easily detach by holding down the pin.-To install the new hella horn, you will see that the electrical plug is 90 degrees off when compared to the OEM horn. You have some options, I chose to loosen the center bolt on the new horn and swivel the bracket 90 degrees such that the plug faces down just like the OEM horn. I needed a vice grip as that center bolt is very secure. Others have reported they chose to extend the wiring to reach the plug, it's your choice.-Plug in the horn to the wiring and you should hear a click sound, which means the plug is secure. Then reattach the new horn using the same bolt, which should fit into the new horn bracket. Repeat the same steps to remove and install the other horn.-Start your car and test your horns and make sure they both work. If not, check your electrical connections, or maybe you have a bad horn.-Replace the radiator cover, which does take some effort to wiggle back to position (and refer to your picture from above)-Reinstall the 2 bolts, and finally the 5 pins.In my case, I broke all my radiator clip pins so I had to drive the car for a couple of days without them. I ended up using these pins which fit well, even though amazon said it would not fit: https://amazon.com/dp/B07Q1MNLTJThe pin needs to fit a 10mm hole, most of the toyota pins are 7-8mm and were too narrow.Total time 30 mins plus time to fix the clip pins, you might be able to remove those clips without breaking them.