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Black rectangular antenna adapter with coaxial connectors, 15 inches long

METRA

METRA 40-NI20 Nissan Antenna Adapter car electronics accessory

SKU CH-02M6-JT43K

Adapts the factory antenna cable to an aftermarket radio in Nissan vehicles

  • Product typeCar Stereo Add-Ons
  • Key featuresUsed To Adapt Factory Antenna Cable Connection To That Of An
  • Overall height0.5 in (1.27 cm)
  • Overall width2 in (5.08 cm)
  • Overall length15 in (38.1 cm)
  • Product weight0.08 lb (0.04 kg)
  • Connects factory antenna to aftermarket radio without splicing
  • Compact 15.00" length fits tight dash spaces
  • Lightweight 0.08 lbs adds no strain to harness
  • Black finish matches OEM interior trim
  • Simple plug-in design requires no special tools

Nissan Antenna Adapter

The Metra 40-NI20 adapts the factory antenna cable connection to an aftermarket radio in Nissan vehicles. It is a Car Stereo Add-On for installers replacing the original head unit while keeping the existing antenna feed. The black adapter measures 15.00 inches long, 2.00 inches wide and 0.50 inches high.

Compact Form Factor

At 0.08 lbs the adapter adds negligible weight and fits behind most dash openings without crowding other harnesses. The 15.00 inch lead provides routing flexibility in tight cavities. It handles the single antenna signal path; installations requiring dual antenna inputs or amplified antenna power will need additional components.

Factory Connector Interface

The adapter bridges the OEM Nissan antenna plug to the standard aftermarket radio jack. It passes the RF signal without active circuitry, so performance depends on the condition of the factory cable and connector. Vehicles with integrated glass antennas or digital radio modules may not be compatible with this passive adapter.

How it compares

Measured against everything we stock in Car Audio Accessories & Wiring, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 93% of the 2,768 comparable items (median $21.99).

Specifications

Product
Brand nameMetra
Product typeCar Stereo Add-Ons
Product colorBlack
Size & build
Overall height0.5 in (1.27 cm)
Overall width2 in (5.08 cm)
Overall length15 in (38.1 cm)
Product weight0.08 lb (0.04 kg)

Questions about this item

Will the 40-NI20 adapter connect my factory Nissan antenna cable to a new aftermarket stereo without cutting wires?

Yes, the 40-NI20 is designed to adapt the factory antenna connection directly to an aftermarket radio, preserving the original wiring.

How can I confirm the 40-NI20 is seated correctly after installation?

When fully inserted, the adapter sits flush and the radio receives clear AM/FM signals with no static or drop-outs.

Does the 40-NI20 package include any mounting brackets or extra cables, or is it just the adapter?

The box contains only the black 40-NI20 antenna adapter itself; no brackets, screws or additional cables are supplied.

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