I have a VW Golf, and inside it doesn't have a USB port connected to the stereo. The only thing it has that I can plug stuff into is an adapter thing (I think a lighter would usually be there, but it just has a lid you pop open and plug stuff into) that says "V12" (I have no clue what that means)-- which I plug my GPS and phone charger into. I'm not a car person, I don't understand anything relating to care other than how to go to point A to B.
Can I put anything into the plug that says "V12" to play music through the car stereo? Is there a Bluetooth I can plug into it or something that I can connect my iPhone 5 to? My phone charger has a USB connector in it, can I plug a USB into it to play music?
Like I said before, I have no idea about anything car related, the only way I found out about the adapter thing to put my GPS and charger to is by sheer luck, and the fact that the thing I bought fit in it.