This is not my first iPhone but I was always under the impression that iPhones where a different baby from iPods when it comes to installing music. As far as I knew iPhones ran on a syncing system and the iPods are just pull and drop. My girlfriend has the 5 also and wants music on her phone from my iTunes library. So my question is , Is there a way to install music on an iPhone from multiple library's (like the iPod ) with out erasing what's already on the iPhone ?