If you have a motorcycle, UTV or other Polaris vehicle with Ride Command and you want to add Sirius XM sound system then you will need this kit. The kit includes the FMDA25 hardwired FM relay and the PRC-KIT FAKRA adapters to connect to the Ride Command antenna port. The adapters allow you to use the AM/FM antenna port on the vehicle while creating a bypass with the FMDA25. This allows you to "take over" an FM station for audio with no static. You can still use the installed AM/FM antenna since the FMDA25 does not engage until the Sirius XM radio is powered on. Package Includes - Male Antenna Cable with FAKRA (Blue) - Female Antenna Cable with FAKRA (Blue) - FAKRA Connector (Black) - FMDA25 Audio Adapter