Ok i have a sony radio in my car that has the usb input on it.. i just switched from a droid Eris to the Inc. The eris worked fine with my radio i could switch songs and everything on the phone using my car radio but when i plug my Inc. into it the radio says its not supported?? its the same Sd card that was in my Eris also i put the phone on hard drive just like i did the eris any suggestions??? thanks