Guys, another addition of item if you want to go this route
RcJoyCon - Resistive Steering Wheel Controller
Retain steering wheel control with these unit, it will emulate all the input signal from steering as a keyboard. Here are one of the install on 350z that replace the stock cubby with OEM nav, he replace the OEM NAV screen with another touchscreen, route the NAV button through Joycon.
http://www.mp3car.com/worklogs/14677...n-console.html
Great for those who wants to throw away their cubby, a bit on the expensive side i guess.