Steering wheel controls and ipod interface

[matrixprime]

I want to put a new dvd nav headunit into my scion, but would rather not lose the steering wheel controls or the ipod interface. If I have to lose one then the ipod, but not the steering wheel controls. Could someone suggest a headunit and a possible solution to my audio problem?

[xDTool]

Almost all pioneer decks have both a USB (for iPod and thumb drive) and a port for a steering wheel control module.

This is a potential setup (there are cheaper and more expensive decks with nav, but this is a good middle ground):

AVIC-X910BT

AVIC-910 iPod Cable

Steering Wheel Interface