Can't say exactly what the interface is but would lay $on a basic AUX in with no real controls. The sales rep I dealt with did not know about it and I only asked as it is now listed on the web site when you 'build your own kluger". When I ttook delivery, he asked the spare parts manager who confirmed its availability and cost. Web site quote: Available on selected models where AUX-In option is part of audio unit. Suits iPod® models that have a dock connector*. Have access to all your tunes wherever you are with an Audio Cable and Car Charger for iPod®. Listen to your entire music library through the RAV4's audio system. A convenient charging feature also allows you to charge your iPod® while you drive. Go here:Grande Build List and click on details for sound system Looking at the cable it uses AUX in via the headphone and charges via the bottom port.
