Ok, I looked all around and couldn't find exactly what I was looking for. My old Ipod, classic style, recently broke. I mostly leave it in my car hooked up to my radio so I don't wan't to spend too much money on a new one. My friend has an iphone 3g and wants to get the iphone4. If I buy his iphone 3g what, if anything, do I have to do to use it as an ipod?