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87’ 951 clock spring + horn diagram?

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Old 08-14-2021 | 12:11 AM
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Default 87’ 951 clock spring + horn diagram?

I’m trying to find this diagram in order to wire up my horn to work with an aftermarket steering wheel.

I have seen non-airbag car wiring diagrams but the wiring for the horn is different.

Any help?
Old 08-14-2021 | 12:28 AM
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I think the black plug (brown/white) wire is for the horn.
Guess I could try to plug and unplug it to find out.

Feeling a little bit sketch becuse it’s airbag related.


Old 08-14-2021 | 04:45 AM
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Yes, the single wire is the horn - ground it to make noise

I took pictures documenting my conversion from an airbag wheel to a 968CS/930S? wheel and hub a while back - one thing you will need to do is install the wiper for the ring, and then add a mating connector to the harness (the socket has the pin but just blank, it's easy to wrap some solid wire around the pin). I can dig up the images if that's helpful.


Originally Posted by Chapman951
I think the black plug (brown/white) wire is for the horn.
Guess I could try to plug and unplug it to find out.

Feeling a little bit sketch becuse it’s airbag related.

Old 08-14-2021 | 08:01 AM
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Originally Posted by four0four
Yes, the single wire is the horn - ground it to make noise

I took pictures documenting my conversion from an airbag wheel to a 968CS/930S? wheel and hub a while back - one thing you will need to do is install the wiper for the ring, and then add a mating connector to the harness (the socket has the pin but just blank, it's easy to wrap some solid wire around the pin). I can dig up the images if that's helpful.
some pictures would be great. I do believe I understand what you are saying.

My plan is to:

1. Drill the metal out in hole #71






2. Insert the “L” bracket / part # 928-652-104-00 / “wiper for the ring”








3. Use the momo hub




4. Ground horn button to the metal ring





I will find a small rubber washer/grommet to secure the “L” bracket / part # 928-652-104-00 / “wiper for the ring” in place.

Then run a 14 gauge(?) wire to the horn power plug / “add a mating connector to the harness”


Good idea about running some wire around the pin. Maybe solder wire?


Last edited by Chapman951; 08-14-2021 at 08:59 AM.
Old 08-14-2021 | 04:41 PM
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OK - fewer pictures are useful than I'd anticipated, but here goes:

You'll need both 92865210400 and 92834709900 (get it used, about $30). Do not trim the tab on the latter (I learned that lesson for you with one very ill-considered cut!).

My control stalk assembly had the hole already, but if it's not there you're right. Lining it up might be difficult, so maybe use the harness connector as a guide? Anyway, should look like this:



I made a little pigtail w/a male quick connect at the other end, and hooked it up like so:





The rest you seem to have a handle on - it's pretty straightforward. The horn button should connect to both ground (some don't even have this and instead it's just the frame of the wheel) and the circuit from the wiper.


Also, your hub seems to have the wiper/cancel ring integrated! Lucky
Old 08-15-2021 | 12:05 AM
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Originally Posted by four0four
OK - fewer pictures are useful than I'd anticipated, but here goes:

You'll need both 92865210400 and 92834709900 (get it used, about $30). Do not trim the tab on the latter (I learned that lesson for you with one very ill-considered cut!).

My control stalk assembly had the hole already, but if it's not there you're right. Lining it up might be difficult, so maybe use the harness connector as a guide? Anyway, should look like this:


The rest you seem to have a handle on - it's pretty straightforward. The horn button should connect to both ground (some don't even have this and instead it's just the frame of the wheel) and the circuit from the wiper.


Also, your hub seems to have the wiper/cancel ring integrated! Lucky
Excellent!!! Thank you for your help. I was able to get the horn working.



L bracket installed. Easy to drill through the “71” hole

I bent a metal o-ring connector. Nice solid connection.

Wired up :-)

Can’t wait to get the interior put back together


Edit: oh yeah, you need the hazard button installed to get the turn signals working. That one had me stumped for a good 2 hours. Good ole search feature saved me.


Last edited by Chapman951; 08-15-2021 at 12:08 AM.
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Old 12-15-2022 | 07:25 PM
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For models that come with an airbag - This is the connector piece that is needed! - https://www.porscheatlantaperimeterp.../N0175994.html

Cylindrical Socket Clip

Part Number: N0175994
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