The Metra 40-VW10 Aftermarket Radio to VW Antenna is a premium antenna adapter designed to retain factory AM/FM antenna functionality when installing an aftermarket radio in select European vehicles. This adapter allows a seamless connection between the OEM antenna lead and an aftermarket head unit while helping maintain strong radio reception. Features & Benefits Retains factory AM/FM antenna functionality Designed for aftermarket radio installations Plug-and-play installation design Helps maintain strong radio reception Durable molded connectors for long-lasting reliability Ideal for European vehicle radio upgrades Specifications Product Type: Antenna Adapter Adapter Style: Factory antenna to aftermarket radio Connector 1: Male Motorola™ connector Connector 2: Female Volkswagen/Audi European-style antenna connector Cable Type: Antenna adapter cable Color: Black Construction: OEM-quality molded wiring and connectors Installation: Plug-and-play Warranty: 1 Year limited warranty Vehicle Compatibility Compatible with select: Audi BMW Mercedes-Benz Volkswagen SMART vehicles Additional select European applications Commonly used for vehicles ranging from 1973–2017 depending on application and factory antenna style. Always verify fitment before purchase. Important Installation Note Some newer European factory antenna systems contain internal capacitors that may affect reception with this adapter. In those cases, the recommended solution is the Metra 40-VW12 antenna adapter instead.