I'm mass storage mode it unmounts the SD cards so the other device can mount them.
I just tested it on my PC & it didn't work as I had hoped.
It's not looking good at this time without some hacking. Maybe someone has/will make an app that will keep the internal SD mounted while in mass storage mode.
Help. Im having the same problem with my 2009 Porsche 911. I even tried moving my music to the internal storage memory into the music folder and my car still won't see the music using the USB connecter. Worked fine before ICS.. I have tried all the USB modes.. Any suggestions would be very appreciated. Thanks in advance.
Has anyone found a solution to this problem? I just updated to 6.16.211.XT912.Verizon.in.US. Now the phone refuses to show SD card where all the music is stored to the car stereo. It just shows the internal drive. Before update it worked flawlessly. Plug into USB port on the stereo and music would begin playing right where I left off the day before.