?Warranty?1 Year Warranty, No Reason Return in 30 Days. Any questions with our carplay retrofit kit, please contact us via Message directly, we will reply to you within 12 hours. ?Attention?1.Please make sure your system must be on version 70.00.021 or higher, if not, pls contact us to help you upgrade the firmware. 2. During installation,the carplay connect is USB1, Siri must be turned on to connect to CarPlay 3.Before upgrading the firmware, you should remove the SD card and insert it when you complete it in case the navigation cannot work. ?Wired Carplay & Android Auto?Our mazda apple carplay kit supports Siri for IOS and Google Assistant voice control for Android, Stay connected to your world while keeping your eyes focused on the road with our smartphone screen mirroring kit. Accessing to map navigation, phone contacts,music and notifications can bring you more convenience. ?Fitment?This mazda apple car play retrofit kit is suitable for Mazda CX3 2016 - 2019 ; Mazda CX5 2015 - 2020 ; Mazda CX9 2016 - 2020 ; Mazda 2 2016 -2019 ; Mazda 3 2014 - 2018 ; Mazda 6 2016 - 2020 ; Mazda MX-5 Miata Club / Grand Touring 2016 - 2020 ; Mazda MX-5 Miata RF Sport 2018 - 2019 ; Mazda MX-5 Miata Sport 2018 - 2020 (If your car does not have an MZD connection device, it will not work). ?Replace? The mazda carplay retrofit kit replaces# TK78-66-9U0C K1414 00008FZ34.