iPod 3 Generation interface - key features:

* Compatible with all iPods
* Charging
* Toggle control of your iPod from the radio - or iPod
* Additional 3.5mm Aux input (iPod not connected)
* Access to playlists
* Auto pause of the iPod when power disconnected (ignition off)
* Operation of the iPod from the vehicle steering controls


For 2002-2004 Mazda 6: The factory headunit requires a small modification to the circuit board (the electronic component - L716 needs shorting) to enable the external CD changer port.

Mazda RX8 - Compatible with radio firmware version 9.55 to 9.99
Press and hold 'text' button and preset button '1' together for a few seconds to display firmware version.
This interface is not compatible with firmware version 10.01 or higher

For ANY Mazda vehicle with MP3 radio (written on front of radio) this interface is not compatible.