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Flat Tow Wiring for 1982 Fiat X1-9  

Updated 09/26/2025 | Published 05/02/2025

Question:

I am looking for a wire harness kit to install on a 1982 fiat x1/9 to flat tow with a n rv with a 4 pin connector. If you have such an item . If not with T connectors, it will be ok if a kit exists for wire splicing but would need diodes for protection.

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Expert Reply:

Hi Victor; there are no custom wiring kits for a 1982 Fiat X1-9. You will have to use a universal wiring kit like the Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles # RM-154.

expert reply by:
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Robin H
Roadmaster 4-Diode Universal Wiring Kit
Roadmaster 4-Diode Universal Wiring Kit
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Etrailer Expert

Robin H.

9/26/2025

Hi Victor, did the Roadmaster 4-Diode Universal Wiring Kit work out for your 1982 Fiat X1/9? I'm curious to know if it was the right solution for you, as it could help others in a similar situation.

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