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Toyota Premium Horns installed

Discussion in 'Gen 3 Prius Accessories and Modifications' started by rcsting, Jul 18, 2009.

  1. rcsting

    rcsting Toyota Fanatic

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    I finally received my Toyota Premium Horn set this week. These are factory horns that are not available from U.S. Toyota dealers. There are a few sellers that are importing these from Japan. Sigma and Carson Toyota are 2 that I know of.

    Installation is very easy, less than 20 minutes. The sound is amazingly loud and a much lower tone. Here is a link with sound.

    toyota.jp > Æ’IÆ’Å Æ’WÆ’iƒ‹ƒAÆ’NÆ’ZÆ’TÆ’Å Â[ > Æ’vÆ’Å’Æ’~Æ’Aƒ€ƒzÂ[ƒ“

    This is a pretty easy project and the results are very worthwhile in my opinion. I don't use my horn very often but when you need to get another drivers attention this will definitely work. :)
     
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  2. Tech_Guy

    Tech_Guy Class Clown

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    Sounds like my old '66 Mustang.

    Keith :)
     
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  3. Muhahahahaz

    Muhahahahaz Member

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    How much was it?
     
  4. REDWIND88

    REDWIND88 New Member

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    I am interested also , Do you have a link to order them?
     
  5. blueumbrella

    blueumbrella Member of Prius Regeneration

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    I also would like to find a place to order these. My current horn on my Gen II is weak. Thanks
     
  6. blueumbrella

    blueumbrella Member of Prius Regeneration

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  7. HTMLSpinnr

    HTMLSpinnr Super Moderator
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    I want to get these as well, but was holding out to see if Danny would be carrying them @ PC Store. If you ordered from Carson - what was your shipping? Their site is rather elusive to shipping costs.
     
  8. rcsting

    rcsting Toyota Fanatic

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    Shipping was $17.00 :( from Carson. Their website says it takes 4 weeks to receive but mine took 7 weeks. I ordered these from Carson before I saw them at Sigma, Sigma has a lower price on the Horns and possibly lower shipping as well. I already checked the Toyota part number with my friends at the Toyota dealer and its unavailable in the U.S. Hopefully Danny can import some for the PC shop.

    Carson Toyota TRD Parts, Replacement parts and accessories for Southern California
    Carson Toyota

    High-Performance Horns :: Sigma Automotive
    Scroll down to Toyota Premium Horn
     
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  9. Muhahahahaz

    Muhahahahaz Member

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    Cool, not too bad on the price...

    So how does one install it? :)
     
  10. Boo

    Boo Boola Boola Member

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    Judging from the stats, recording and picture, I suspect that the Premium Horns sound a lot like the Camry horns (same lower tone), but are louder than both the Camry and Prius horns because, unless I'm wrong, the Premium Horns are a disc and trumpet design while the Camry and Prius horns are a disc design.
     
  11. HTMLSpinnr

    HTMLSpinnr Super Moderator
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    Shipping from Sigma is about the same - so that does appear to be the better route. I believe they're having them imported via a slow boat, hence the lead time.

    I went ahead and ordered mine from Sigma.

    I did note some places marking a difference between needing a "y" adapter or not. Did yours come with one?
     
  12. rcsting

    rcsting Toyota Fanatic

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    There is no adapter needed, direct plug in. The Horns come with 3" metal extension pieces so that the horns sit lower than the originals. The lower mounting position is necessary because of the shape of the bumper cover. The stock horns are very thin but because the new horns are deeper (dimension wise) they need to sit lower behind the bumper cover. The instructions show removal of the bumper cover but the horns can easily be accessed from the top by removing a few bolts and some of the plastic retainers.
     
  13. HTMLSpinnr

    HTMLSpinnr Super Moderator
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    That last line was just what I wanted to see. Mine arrived while I was out of town and I really didn't want to have to pull the bumper cover for this. Going to go tackle this. If pics are possible, I'll provide.
     
  14. a priori

    a priori Canonus Curiosus

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    I'm expecting big things! Looking forward to the pics.
     
  15. HTMLSpinnr

    HTMLSpinnr Super Moderator
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    Ordered these from Sigma Automotive about a month ago. They arrived last Monday, but I haven't been home long enough until today to give this much attention.

    Sorry to dash expectations - I did get these installed, but not in a way I'd want to photo document as I went at this from several approaches before settling on a method that worked. Sadly, I think the part number I received wasn't designed for this car. I got so frustrated through the process that I didn't get a single photo in. The whole ordeal took me a good 1-1.5 hours in 102°F heat.

    Instructions appear to be for a Scion or other Toyota vehicle (Camry?) as the locations recommended don't quite line up with where the Prius horns exist. I was able to put one horn in the RH side location w/ only minor interference w/ the bumper cover (thinking of going back and adding foam tape, and bending the bracket just enough to eliminate the contact). I ended up using the stock bolt on the right side as the spacer pushed the horn too far into the bumper. I opted to not use the left horn location for the same reason as it simply wasn't going to work due to clearance, but instead bolted it to the secondary hood latch (more in line w/ instructions) using the provided spacer and bolt. I ended up using the Y harness included just so the wiring would reach the other location. The left horn harness is 2-3" too short and is not extendable. The right-side harness also comes up 1" short, requiring the use of the adapter. I zip-tied the cable in a couple of places and tucked the unused left-side horn harness aside (and secured w/ zip tie).

    I'm happy w/ the sound, though they were clearly louder before I put all the covers back together ;-)

    I'm not 100% clear if I got a different part # in the end that wasn't quite designed w/ our cars in mind, or if it's just "known" that we have to tweak this a tad to make things work. Either way, the instructions are illustrated, but 99% Kanji (Japanese), so you're kinda on your own.

    Some hints based on instructions:
    * While you don't need to remove the entire bumper cover, removing all of the upper fasteners does make it alot easier to gain access as you can pull the cover forward enough to reach an arm in.
    * Don't bother removing the front bottom cover unless you intend to remove the second cover hiding underneath.
    * The LKA radar bracket is a tempting install location as well, but not an option on AT equipped cars. It also requires additional bolts that I didn't have handy.

    Tools required:
    * 10mm and 12mm wrench (open/box and socket, or ratcheting box wrench). Stock horns are 12mm heads, but one of the install locations and included bolts is a 10mm head.
    * Small flat head screw-driver or push-pin removal tool to remove push-pin fasteners.
    * Angle cutters to trim zip ties (4 zip ties included)
    * Electrical tape may be recommended to cover exposed wiring, and is not included.
    * Foam tape may be required if the stock right-side horn location is used to minimize chafing and wear over time.
     
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  16. RadioZero

    RadioZero Member

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    installed the premium horns today. installed from the top as suggested. pretty easy install, i used the existing factory location but bent the metal on the new horns so there would be no interference with the front bumper. i clipped the tie downs on the factory harness to allow the existing factory wires to reach. then zip tied them to keep them from flopping around.

    great sounding horns and very loud.
     
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  17. blueumbrella

    blueumbrella Member of Prius Regeneration

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    Great. Mine are sitting here waiting to be installed right now. Hopefully it will go as smooth for me. Thanks
     
  18. rachaelseven

    rachaelseven New Member

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    I installed mine last night also, and I had a pretty smooth go of it. I found the stock locations worked fine and I only had to make two minor modifications:

    1. On the driver's side (left) horn, I removed the metal bracket from the stock horn and put it on the new horn. The stock bracket was about 1/2" longer, which allowed the new horn to fit almost like the original. The only difference was that the horn mounted at a different rotation, due to the location of the little bump that keeps the horn from rotating on the bracket.

    The difference in rotation made the factory wiring just a bit too short, so:

    2. I used the harness included with the kit to fashion an extension cable. I clipped off the long wire, so I ended up with a 25cm wire with a female plug on one end and a male on the other. I used that to connect the factory harness to the driver's side (left) horn. It was more extension than I really needed (5cm would have more than sufficed), so I bundled the extra against the factory harness and secured it with a cable tie.

    That was it. Otherwise, the horns were a direct bolt-in replacement. I did not have to bend brackets or anything else. I reused the existing bolts. I went in from the top, as others suggested, which gave me just enough room to get my hands in. The bolts were still blind though, and there wasn't much room for a wrench swing, so I would not call it easy - it required a bit of mechanical experience, or at least comfort level.

    They do sound fantastic, although it is a bit incongruous to hear such a big sound come from such a little car. Pretty notes though and I'm very glad I put them in. My neighbors, not so much... I couldn't stop testing them :p
     
  19. a priori

    a priori Canonus Curiosus

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    It sounds (sorry, no pun intended) as though these installations haven't provided an opportunity for picture-taking. I'm hoping I am wrong about that, though -- please post any pics that might help future installations.

    I'm not that mechanically experienced, AND I don't read Japanese!
     
  20. rachaelseven

    rachaelseven New Member

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    Booo for the bad pun :p Unfortunately correct though - it was not well lit, no good angles and all the hands involved (mine and assistants) were very much busy at the time. Sorry. If it's any consolation, the included instructions were not particularly necessary, so you won't need to read Japanese. You just look at the old horns, look at the new horns, and do it up... far from the toughest mod I've ever done.

    As a side note (there, we're even), a 12mm ratcheting end wrench would have been nice to have. I never thought I'd actually want a ratcheting end wrench - always swore they were silly - but this job would have been a couple minutes faster with one.