SD Card + Aux jack
 

I have a 2006 LR3/HK stereo w/out Nav. I have the aux jack in the back. I know they make SD card readers that have a USB connection for connecting to a computer. Has anyone figured out how to have an SD card reader connect to the Aux jack? It would be so nice not to have to plug my iPhone in every time I get in and out of my car.

Any other ideas similar to this?

Thanks!