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Go Back   IWSTI.com: Subaru STI Forums > STi Technical Discussion > How-To / Install


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Old 12-21-2005, 02:37 PM   #1
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Exclamation **DIY Hella Super Tones Install **

Well I figured I would post up some pictures because there are always people confused on how to actually wire these up, and some wonder if its even worth it. Even when I searched I couldnt find many good DIY's, Here are the pics thanks to lokutus1.














Materials:

9 female disconnects
1 male disconnect
4 ring terminals
black 14 gauge wire
fuse holder
20 amp fuse
heat shrink
electrical tape
lighter (for heat shrink)
wire cutter/stripper/crimper
4 washers
2 bolts and 2 nuts (unsure of size)

1) You want to remove your grill and think about where you are actually going to mount them. I wanted mine alittle more spread out, So I mounted mine on the radiator support part of the frame. I used the mounting brackets that came supplied with the kit. Just mount them up first how you want them mounted, then make sure you can still fit the grill on, mine is tight, but the grill goes on none the less, and I think it looks nice spread farther apart.

2) Take the relay and notice there are 4 prongs. At this point you should have a bunch of wire, wire crimpers, female + male connectors.

4 Prongs are #'d

86) Stock horn wire (take one of the stock horn wires off, and put in a male connector, extend the wiring with the one you bought, and with a female connector, plug it on the relay, ok first one done.

30) This one off the relay goes right into the battery, get a connector with a hook on it, attach some wiring onto it, and run it from the #30 prong to the (+) battery.

85) This is the ground, cut a piece of wire about 9 inches, and use the stock grounding point located right next to the battery, worked perfectly for me.

87) This is for the (+) on the hella hns. Run a wire off the # 87 prong, and tap in an extra piece of wire so it goes to both horns.

3) At this point all you have to do is wire up the grounds from the hella horn. I used the same spot on the frame of the car as I mounted the horns on. Ran about a 3inch wire off the horn, into the mounting spot.


** Sound Clip (Not mine but you get the idea --> http://www.wallpaperinstaller.com/scooby/horns.mov)

*Don't forget to buy a small tube of dielectric grease as you will want to put a dab on each connection...notice how the factory did the same thing. As an added bonus, you can lightly (lightly) coat all of your weather stripping with the same dielectric grease to keep all of your weather stripping nice and soft (I do it once a year).

TRM 25-AUG-2006: added to the How-To Catalog sticky


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Last edited by TRM : 08-25-2006 at 01:33 PM.
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Old 12-21-2005, 02:55 PM   #2
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Added.
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Old 12-22-2005, 03:59 AM   #3
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Great Write up, Thanks!
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Old 12-22-2005, 05:13 AM   #4
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I tried my best, let me know of any way I can be more clear!
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Old 12-24-2005, 02:00 AM   #5
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Are there specific part numbers for the sti? or are they universal kits?
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Old 12-24-2005, 04:20 AM   #6
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just go to rallylights.com - no specific STi kit. I would suggest that people add heat shrink tubing to cover the connections or use the automotive connectors that have built-in heat shrink. Looks cleaner and helps to keep the weather out.

Nice write up...installed mine (removed the stock horns) about a week ago but was too lazy to write it up
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Old 12-24-2005, 07:48 AM   #7
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Thanks for the write up!

I hate the way the stock horns sound so I'd like to do this soon. I love the way they look behind the grill. How much louder are these? Is this what you got?

HL85115
Hella Supertone Horn Kit. 118 dB This horn is best on open interstates where you want to warn a truck that he is about to run into you. These horns are manufactured in Germany. Lucy's Comment: D above Middle C to B: - a major sixth and a consonant interval. $63.52
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Old 12-24-2005, 07:52 AM   #8
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Quote:
Originally Posted by rodent
Thanks for the write up!

I hate the way the stock horns sound so I'd like to do this soon. I love the way they look behind the grill. How much louder are these? Is this what you got?

HL85115
Hella Supertone Horn Kit. 118 dB This horn is best on open interstates where you want to warn a truck that he is about to run into you. These horns are manufactured in Germany. Lucy's Comment: D above Middle C to B: - a major sixth and a consonant interval. $63.52
Yes I got that kit, the other kit is actually made in India to resemble the good kit made in Germany. There is quite of a noticable sound difference as well as quality, opt for the better kit.
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Old 12-24-2005, 07:53 AM   #9
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Quote:
Originally Posted by QuickSilverSTi
just go to rallylights.com - no specific STi kit. I would suggest that people add heat shrink tubing to cover the connections or use the automotive connectors that have built-in heat shrink. Looks cleaner and helps to keep the weather out.

Nice write up...installed mine (removed the stock horns) about a week ago but was too lazy to write it up
I would suggest the heat shrink wrap as well, Im no electrician so I kinda forgot about that part
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Old 12-24-2005, 03:48 PM   #10
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quick question...i want to put in a 20 amp in-line fuse. i bought one from auto zone, but the wire running from one end of the fuse holder is connected to the other end, creating a loop. do i just cut the wire in the middle, put in connectors on the end and put it in-line with the wire running from #30? sorry if this is a dumb question. i've never done car wiring before.

thanks!
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Old 12-24-2005, 03:55 PM   #11
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sounds like you have it figured out.... if its creating a loop you need to cut it...
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Old 12-24-2005, 04:17 PM   #12
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ok thanks! some other quick questions. do you have to use crimpers for the terminals or can you just carefully crimp using pliers or something? also, can you just use the flame from a lighter on shrink wrap? i don't have a crimper or heat gun, so i was wondering if i need to buy these for the install. lastly, what size bolt is used to mount the horns in the locations in the pic?

thanks!

Last edited by lokutus1 : 12-24-2005 at 04:33 PM.
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Old 12-24-2005, 04:53 PM   #13
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Yes, you can use a lighter to do the shrink wrap if you are careful however I would strongly suggest going to Sears and the paint section and dropping $20 on a heat gun if you don't want to drop $70 at Lowes. I dropped teh $70 since I am doing sound damping in a few cars.

You need to buy crimpers.

Take one of the smaller bolts that you removed from the top of the radiator and stick it in one of the holes where you will mount the horns. It should go in...bring that to Home Depot and get the same size. Or, get a 1/4x1 bolt and use a 1/4 drill bit to widen the hole on your car (it takes about a hair off).

Bear in mind you are messing with your electrical system and shouldn't cut corners. Spend $20 on a cheap Sears heat gun and buy a cheap set of crimpers.

Mine works great and no worries about loose connections nor the weather. You don't want a ghetto install

*Don't forget to buy a small tube of dielectric grease as you will want to put a dab on each connection...notice how the factory did the same thing. As an added bonus, you can lightly (lightly) coat all of your weather stripping with the same dielectric grease to keep all of your weather stripping nice and soft (I do it once a year).

I also used the plastic wire loom covering over everything once I was done.
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Old 12-24-2005, 04:58 PM   #14
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ok thanks! what type of crimper should i be looking for? i see a couple of types on the sears website.
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Old 12-24-2005, 05:04 PM   #15
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Quote:
Originally Posted by QuickSilverSTi
Yes, you can use a lighter to do the shrink wrap if you are careful however I would strongly suggest going to Sears and the paint section and dropping $20 on a heat gun if you don't want to drop $70 at Lowes. I dropped teh $70 since I am doing sound damping in a few cars.

You need to buy crimpers.

Take one of the smaller bolts that you removed from the top of the radiator and stick it in one of the holes where you will mount the horns. It should go in...bring that to Home Depot and get the same size. Or, get a 1/4x1 bolt and use a 1/4 drill bit to widen the hole on your car (it takes about a hair off).

Bear in mind you are messing with your electrical system and shouldn't cut corners. Spend $20 on a cheap Sears heat gun and buy a cheap set of crimpers.

Mine works great and no worries about loose connections nor the weather. You don't want a ghetto install

*Don't forget to buy a small tube of dielectric grease as you will want to put a dab on each connection...notice how the factory did the same thing. As an added bonus, you can lightly (lightly) coat all of your weather stripping with the same dielectric grease to keep all of your weather stripping nice and soft (I do it once a year).

I also used the plastic wire loom covering over everything once I was done.

Thanks for the info, I added it into my description...and your right, you do not want to cut corners, unfortunetly I never use the shrink wrap


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