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METRA 40-GM31 barb-less antenna adapter kit for GM vehicles

METRA

METRA 40-GM31 Barb-less Antenna Adapter Kit car electronics accessory

SKU CH-2JK1-AG470

Barb-less antenna adapter kit fits select 1988-2006 GM vehicles and connects external devices with built-in FM modulators

  • Barb-less connector fits select 1988-2006 GM vehicles without modification
  • Adds CD changer or FM modulator devices to factory radio system
  • Compatible with Metra 60-series harnesses for expanded installation options
  • Kit includes 40-GM31 adapter for direct plug-in integration

METRA 40-GM31 Barb-less Antenna Adapter

This kit connects a CD changer or other external device with a built-in FM modulator to select 1988-2006 GM vehicles equipped with a barb-less antenna connector. It is designed for owners of compatible General Motors cars who want to add auxiliary audio sources without replacing the factory radio. The adapter works alongside other Metra 60-series harnesses for expanded installation options.

Suits GM owners adding external audio via FM

Installers needing a standard Motorola-type antenna connection will not find it here, as this adapter specifically addresses the GM barb-less interface used during the 1988-2006 period. Vehicles outside that model range or those with different antenna styles require a different adapter kit. Buyers seeking Bluetooth or direct auxiliary input integration should look for alternative interface solutions.

Highlights

  • Barb-less connector fits select 1988-2006 GM vehicles without modification
  • Adds CD changer or FM modulator devices to factory radio system
  • Compatible with Metra 60-series harnesses for expanded installation options
  • Kit includes 40-GM31 adapter for direct plug-in integration

Specifications

No published specifications for this item yet.

Questions about this item

Will the 40-GM31 kit connect to the barb-less antenna connector on my 1988 GM vehicle?

Yes, the adapter is designed for select 1988-2006 GM vehicles equipped with a barb-less antenna connector, allowing direct fitment without modification.

How can I verify the 40-GM31 adapter is working after I install it with a Metra 60-series harness?

Connect an external device with a built-in FM modulator; if audio plays clearly through the vehicle speakers on the selected FM frequency, the antenna signal path is functioning correctly.

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