I got some music stored, but is there way for me to format my HDD inside my G37? I wanna put everything back to default. Thanks.

 

There is a way to delete all the music on the hard drive, its in the onscreen menu's for the music box. I can't tell you exactly where off hand, but search and you should be able to locate it.

You can always leave it as a gift to the next owner, my car was from Nebraska and was loaded with County music