The unit was $499, but it can probably be found cheaper. You can buy an MHL adapter kit for $15 - $30 to connect your android phone and skip buying the pioneer kit which is $100. If you have an iphone everything you need comes with the unit cable wise. I don't know about the iphone for software but for android you'd need ARL which is $30 (expensive but worth it), torque is $5 bucks and I got my ODB dongle for $25 I think.
So ~$600 for just what you would need. That is excluding the dash kit with wiring harness, CAN decoder for vehicle sensors and the decoder for the steering wheel controls ($150-200 if you want that). Maybe they can be found for less, I didn't really shop around.
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