This installation kit is required for your vehicle if it is equipped with a Navigation Radio with SIRIUS installed. Installation Harness with SIRIUS (CX-7- CX-9 and MAZDA6 – for navigation audio with SIRIUS) (Mazda3 – on or after Jan. 1- 2008 production). Taking your Apple iPod along for the ride just became a lot easier. Mazdas iPod Integration Module allows you to play your iPod through your Mazdas audio system with crystal-clear sound and a built-in battery charger. Works with most 30-pin- dock connector equipped iPods. (iPod not included. Requires Installation Harness).