I'm planning on buying a USB Blutooth dongle to put into the USB socket of my car stereo, but I'm not sure if it's compatible so I'm hing to hear from others here who might have already tried it. The thing is, the USB is there so I can use my thumb drives to play MP3 files on it, so I'm not exactly sure that a dongle would work. I'm willing to just buy and try it out but even though it's fairly cheap it and still be a waste of money if it ends up not working since I can't use it anywhere else. Anyone here who has tried using a dongle on the USB socket of your car stereo?