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Small rectangular black plastic antenna adapter with coaxial connectors at each end

METRA

METRA 40-KI20 Antenna Adapter Car Electronics Accessory

SKU CH-C438-0QYVC

Adapts the factory antenna cable for aftermarket radio installation in select Hyundai and Kia vehicles

  • Product typeCar Stereo Add-Ons
  • Key featuresUsed To Adapt Factory Antenna Cable Connection To That Of An
  • Overall height0.75 in (1.91 cm)
  • Overall width2 in (5.08 cm)
  • Overall length17 in (43.2 cm)
  • Product weight0.07 lb (0.03 kg)
  • Adapts factory antenna for aftermarket radio installation
  • Compact 17.00" length fits tight dashboard spaces
  • Lightweight 0.07 lbs design adds minimal wiring weight
  • Compatible with select Hyundai and Kia vehicle models
  • Durable Metra construction ensures reliable signal connection

METRA 40-KI20 Antenna Adapter

The METRA 40-KI20 is an antenna adapter that connects a factory antenna cable to an aftermarket radio. It is designed for installers upgrading the stereo in compatible Hyundai and Kia vehicles. The adapter ensures the original antenna signal reaches the new head unit without cutting or splicing the factory wiring.

Factory Connector Limits

This adapter only bridges the specific factory antenna plug found on select Hyundai Equus, Genesis, Sonata and Kia Amanti, Borrego, Cadenza, K900, Optima and Sportage models to a standard aftermarket radio input. It cannot adapt other connector types, amplified antenna systems or satellite radio feeds. The 17.00 inch lead provides limited routing flexibility inside the dash.

Verify Vehicle Fitment

Confirm the exact year and trim of your Hyundai or Kia matches the listed compatible models before ordering. Ensure the factory antenna connector shape matches the adapter's input side, as some model years use a different plug. Check that the 17.00 inch cable length reaches your new radio location without tension.

How it compares

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

Price $9.99
Cheaper than about 91% of the 2,768 comparable items (median $21.99).

Specifications

Product
Brand nameMetra
Product typeCar Stereo Add-Ons
Size & build
Overall height0.75 in (1.91 cm)
Overall width2 in (5.08 cm)
Overall length17 in (43.2 cm)
Product weight0.07 lb (0.03 kg)

Questions about this item

Which Metra antenna adapter matches the 40-KI20 part number for my Hyundai or Kia?

The 40-KI20 is the specific Metra adapter that converts the factory antenna connector to an aftermarket radio plug for the listed Hyundai and Kia models.

How does the 17.00 inch cable length affect installation in my dashboard?

At 17.00 inches the lead gives enough reach to route behind the dash to the new head unit without excess slack to manage.

What connection standard does the 40-KI20 adapt between?

It adapts the OEM antenna socket on select Hyundai Equus, Genesis, Sonata and Kia Amanti, Borrego, Cadenza, K900, Optima, Sportage vehicles to the standard aftermarket radio antenna plug.

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