Ok I'm a geek I had to write this now lol
The app controlled radio behind the dash controls all the cd functionality via an app
The best example is right here:
So I'm obviously buying an LTE ipad ... BUT only because the GPS chip is in it. I'll tether from my phone (I have a 6 gb plan)
Here's where the magic comes in lol
Check out Kingston's MobileLite wireless reader. I actually have it in my car already and it's amazing.
This little thing is a wireless USB and SD card reader for iOS devices (and other devices via applicable apps or even the browser). It powers off the lighter with USB. It has a battery and when plugged in can even read hard drives when it's powered.
But if you use it, you lose internet access to the iPad right? No! The devices has a router built in and you can connect back to the iPhone for net access.
EVEN sweeter, if you have VLC for iOS.. Anything plugged into it comes up as a uPNP server in the app... Even hard drives. So yes, you can natively stream select non standard formats without transcoding (MPEG-2, xvid etc) to the iPad as VLC plays it natively. Some formats aren't supported with the uPNP server on the device. Maybe a future firmware update will fix that.
I'll demo it in a video soon, promise lol