About the Metra 40-LX21 Antenna Adapter
Metra 40-LX21 Antenna Adapter
This antenna adapter lets you connect an aftermarket antenna to the factory radio in select 2009-up Toyota, Lexus, Subaru, and Scion models. One end has a female Motorola connector, and the other end has a male antenna connector. You'll also need another antenna adapter if you are connecting an FM modulator to your factory radio. Warranty: 60 days.
What's in the box:
Metra 40-LX21 Antenna Adapter owner's manual
- Toyota/ Lexus/ Scion/ Subaru vehicle antenna adapter cable
Reviews (5)
Customer reviews for Metra 40-LX21 Antenna Adapter
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More details on the Metra 40-LX21 Antenna Adapter

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Features
Compatibility: This antenna adapter allows you to connect an aftermarket antenna to the factory radio. This adapter is for select 2009 and up Lexus/Toyota/Scion/Subaru vehicles.
Installation Note: A blue wire is attached to the antenna adapter. When installing the adapter, the blue wire should be connected to the antenna turn-on lead of your new power antenna.
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Customer Q&A
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This adapter harness, along with the Metra 40-LX11 Antenna Adapter harness, worked interfacing my JVC HD radio receiver to my stock radio. When using both adapter harnesses, don't forget to connect the two blue wires together. I used a small wire nut for that.
PB from Fort Lauderdale, FL