I'll be purchasing a new '07 Ford Fusion in a few days, and it has a minijack line input for MP3 players. Finally I can ditch my iTrip, even though it has served me faithfully for many years. But, this is my question: Which method should I use to connect my iPod? Should I just use the standard Firewire car charger for charging and use a cable from the the headphone jack to the line input? Or, should I somehow rig up a dock in the vehicle so I can get a true Line Out so I won't have the variable volume on the iPod itself? Does a car charger exist with a line output? If it matters, I have a 3G 30GB iPod.