Quote Originally Posted by Balikpinoy View Post
Here's the parts list that I used to change my Head Unit to a Pioneer Dual Din 2550-BT

Interface Module
Amazon.com: PAC RP4-MZ11 Radio Replacement Interface With Built In Pre Programmed Steering Wheel Control Retention and Navigation Outputs: Car Electronics

Wiring Harness - This one allows you to hook up the old radio on a separate plug so the time and display info can be changed without removing the after market radio.

Amazon.com : METRA 70-7903T - Radio Harness Into Car - Mazda Wiring Harness 07-UP : Computer Internal Components : Electronics

Dual Din Dash Kit - NOt sure why it says 2009..but my CX9 is 2012/3 and it fits
Amazon.com: Metra 99-7516B Single DIN/Double DIN Installation Dash Kit for 2007-2009 Mazda CX9 (Black): Electronics

I did not have problems with the install with these parts ready. I even got the backup camera working.

Bro, with your Pioneer Head unit, can you edit the clock as well as toggle the fuel consumption computer info on the top console display (the one above the HU)?