I just installed one in my truck. It gives you radio and steering wheel audio controls to navigate through the iPod. My iPod is tucked away unseen in the center consol. It’s not perfect, and the iPod navigation is somewhat clumsy, but I think it’s probably the best one available right now.

Peripheral Electronics iPod Adapter. http://peripheralelectronics.com/

I bought mine through Discount Car Audio. They sell them with th e required wiring harness. They are on line.