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Thread: Whats this wire for? 1972 911T

  1. #1
    Senior Member Simonjjb's Avatar
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    Whats this wire for? 1972 911T

    Looking under the front right fender and I see this wire not connected. Its not for the spot lights. Any ideas? Two wires, one is brown and the other looks black with yellow/green. Female connectors

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    1968 911L Coupe - Golden Green
    1971 911S Coupe - Gemini Blue
    1973 911S Targa - Signal Yellow
    1974 914 2.3 - Sunflower Yellow

  2. #2
    I believe it is for the right side horn unless both horns are on the left side on a 72. Colors match horn wiring.

  3. #3
    Senior Member Simonjjb's Avatar
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    Thanks. Yes, both horns are on the left side. Maybe one was moved?
    1968 911L Coupe - Golden Green
    1971 911S Coupe - Gemini Blue
    1973 911S Targa - Signal Yellow
    1974 914 2.3 - Sunflower Yellow

  4. #4
    My 73 S had both horns on the LEFT side and my 70 S has one on each side...just not clear when they made the change. I am looking right now at wiring diagrams for both cars (73 and 70) and indeed the wiring pair colors are consistent only with a horn in that area...so the mystery continues!

  5. #5
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    Its the optional extra horn.

  6. #6
    72 and 73 2 horns all on LHS

    What optional extra horns Gearby or are you having a lend of us?
    Clyde Boyer





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  7. #7
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    I believe the factory or Bosch was using wiring looms leftover from '71 , so therefore the extra horn wires that would not be used on a '72 . Maybe the horns were on this side for a right hand drive car ?
    Last edited by Richy; 09-24-2017 at 05:06 PM. Reason: add text

  8. #8
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    Quote Originally Posted by BOYER73S View Post
    72 and 73 2 horns all on LHS

    What optional extra horns Gearby or are you having a lend of us?
    True, the horns are on the left unless you purchased the optional 3rd fanfare horn. This is all according to the wiring diagram that I have for 1971 cars. Obviously the loom was the same for 72. I don't know if that option was still available in 1972 but I would think so since the car was using the same horns.
    I've never seen a car with that option, nor can I imagine why anybody would want a third horn.
    One more thing for you restorers to obsess about. Date matching a third horn. We haven't gotten that anal about date matching horns yet? It's just a matter of time.
    Last edited by Gearby; 09-24-2017 at 06:17 PM.

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    Here's the left side with the two standard banjo horns. Just to prevent any of you from getting any crazy ideas

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