 Horn Help, Sparco steering wheel horn |
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| Deusexmachina77 |
 May 16 2024, 04:18 PM
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#1
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Member  Group: Members Posts: 93 Joined: 30-March 22 From: Chicago Member No.: 26,426 Region Association: Upper MidWest 
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This steering wheel was installed by the PO. I love it. It's like having power steering.
Is there a way to pull a wire to the center button? What's behind the steering wheel mounting hub? Will I find a path? I don't want to remove the steering wheel if there is no path to run a wire. I need a horn before I turn into an SUV pancake.   |
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| Freezin 914 |
May 16 2024, 05:56 PM
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#2
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Senior Member Group: Members Posts: 871 Joined: 27-July 14 From: Wisconsin Member No.: 17,687 Region Association: Upper MidWest
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The wire may or may not be there already, I would pull the hub to check. Hopefully it is capped off and tucked inside.
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| windforfun |
May 16 2024, 06:16 PM
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#3
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Senior Member Group: Members Posts: 1,822 Joined: 17-December 07 From: Blackhawk, CA Member No.: 8,476 Region Association: None |
Pull the hub for sure. You might find a Rolex watch in there.
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| bkrantz |
May 16 2024, 07:36 PM
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#4
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914 Guru Group: Members Posts: 7,791 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains
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The stock horn wire should be in the column, behind the hub. It can feed through the small hole on the left. Just make sure there is enough slack to allow the wheel to crank fully left and right.
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| infraredcalvin |
May 16 2024, 08:01 PM
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#5
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Distracted Member Group: Members Posts: 1,523 Joined: 25-August 08 From: Ladera Ranch, CA Member No.: 9,463 Region Association: Southern California
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| Deusexmachina77 |
May 16 2024, 08:20 PM
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#6
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Member Group: Members Posts: 93 Joined: 30-March 22 From: Chicago Member No.: 26,426 Region Association: Upper MidWest
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QUOTE(infraredcalvin @ May 16 2024, 09:01 PM)  How would you add the ground if I find the horn wire behind the hub? |
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| Deusexmachina77 |
May 16 2024, 08:24 PM
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#7
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Member Group: Members Posts: 93 Joined: 30-March 22 From: Chicago Member No.: 26,426 Region Association: Upper MidWest
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I should add that the PO installed a separate horn button under the steering wheel that travels to a relay and then the horn. My original plan was to feed that wire through the back somehow, but based on other posts and photos of the steering column, that looks like a fool's errand.
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| windforfun |
May 16 2024, 09:09 PM
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#8
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Senior Member Group: Members Posts: 1,822 Joined: 17-December 07 From: Blackhawk, CA Member No.: 8,476 Region Association: None |
The horn "switch" is grounded through the steering column. It only requires the one hot connection behind the center wheel cover (hub). It's a spade lug connector. I can't remember the color of the wire.
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| porschetub |
May 16 2024, 10:45 PM
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#9
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Advanced Member Group: Members Posts: 4,703 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
QUOTE(Deusexmachina77 @ May 17 2024, 10:18 AM) This steering wheel was installed by the PO. I love it. It's like having power steering. Is there a way to pull a wire to the center button? What's behind the steering wheel mounting hub? Will I find a path? I don't want to remove the steering wheel if there is no path to run a wire. I need a horn before I turn into an SUV pancake. Pull the wheel adaptor off and find the original wire which will be live but most likely cut off the contact ring or sealed , repair and pass via the hole in the adaptor ,then drill and tap a separate hole for earth inside the adaptor to get a good ground and should work,power in button to earth will make the horn work . However if the wheel has an oddball adaptor the horn ring may not be present because it didn't fit ,cheers |
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