Caution Notice: It does not replace the core electronics. Any existing defects of the electronic core will not be fixed by the shell replacement. Only Key Shell, NO interior (remote/electronics/transponder chips) unit inside.
Installation step: 1. Fit the uncut blade end to the bottom case. 2. Install the battery and chip into the groove of the bottom case. 3. Put the 4 buttons into the top case, and then put in the white rubber pad to fasten the bottom case, the installation is complete.
Fitment: Fit for Mazda 3 5 RX-8 CX-7 CX-9 2003-2013