Recommend: Want to replace stock radio with DDin GPS/radio, good fit, simple & CHEAP?

[k.alexander]

I've searched and found some options, but I'm probably missing something.
I want to replace my base Double-Din radio with a 6-7" GPS unit, which would also serve as my radio.

I dont need anything fancy on the music side, most of the time I listen to audiobooks/podcasts from my iPhone, even just Aux-In would be sufficient. I dont need DVD playback, etc. I basically just want a good GPS in that place and still obviously have some sort of Radio/CD (although even the CD isn't that important).

MUST HAVE: MUST be able to still use the steering wheel audio controls.
WOULD BE NICE: Bluetooth for phone calls.

Any recommendations????