The Metra 40-SB31 Subaru FM Modulator Antenna Adapter Kit is an antenna adapter kit for adding an external device with a built-in FM modulator in select Subaru applications. It adapts the vehicle original factory radio and antenna connectors so the factory radio and antenna system can remain in use.At a Glance Antenna adapter kit for FM modulator integration Adapts the vehicle original factory radio and antenna connectors to an FM modulator Allows continued use of the factory radio and factory antenna Includes one male Motorola-style adapter cable and one female Motorola-style adapter cable System / Wiring Notes This kit is for FM modulator integration, not a standard factory-antenna-to-aftermarket-radio adapter direction Connector style should be verified before installation Installation Notes Confirm exact year, make, model, trim level, factory radio, and factory antenna connector before installation Test-fit the FM modulator antenna adapter kit and review manufacturer instructions before final assembly Additional parts may be required depending on vehicle equipment and the aftermarket radio or accessory being installed Professional installation is recommended for best reception, connector fit, and long-term reliability What's in the BoxTwo Subaru FM modulator antenna adapter cables as supplied by MetraTechnical Specifications Brand: Metra Model: 40-SB31 Product Type: Subaru FM modulator antenna adapter kit Application: Select Subaru FM modulator installations Cable 1: Male Motorola to Subaru-style connector Cable 2: Female Motorola to Subaru-style connector Compatibility Type: Factory radio/antenna connectors to FM modulator Identifiers & Packaging MPN: 40-SB31 UPC: 086429372720 Sold As: Kit Included Components: Two Subaru FM modulator antenna adapter cables as supplied by Metra Why Buy From MCOR Automotive Authorized retailer for the brands we sell Specialists in vehicle audio integration, radio replacement parts, and installation accessories 22+ years of professional automotive electronics experience Expert support for compatibility verification and proper setup