All is not quite well in this thread. There was a thread recently that had a lot more info.
There is a lot involved with USB charging. Motorola, for instance has resistors in their USB cords that allow a larger charging current, otherwise you could be limited to 100 mA.
Apple has made it so you can get an excess of 1A from USB.
I actually THINK your best bet would be a 1 A cigarette lighter charger and a USB cordset for the Nokia Phone or a cigarette lighter charging adapter for the phone for two reasons:
1. Your not violating any warranty issues and if there happens to be the shenanegans of pull up resistors on the data lines to determine charging current, your covered.
2. The 12 V cigarette lighter will likely have the USB charging limitations/handshaking already built in, so if it's possible to charge at a higher rate, it likely can.
Look here:
https://en.wikipedia.org/wiki/Universal_Serial_Bus#Power and pay attention to the charging section.
I have a CIG lighter adapter that can interface to micro and mini USB. That adapter I use for my GPS, Cell and handsfree in my car. My car cannot charge unless the ignition is on.
There is another car that has power to the cigarette lighter all the time. I use it to charge my cell. There is a handsfree device also. Not sure what connector it uses.
This is basically so I wont be without power on the cell.
I have a charger near my bed that I can adapt to the micro and mini connectors and I have a floating charger that I primarily use for the cell.
To further aid charging of all devices, I bought two universal chargers and spare batteries which are really cool. You can place nearly any Li battery in it using adjustable clips without regard to polarity. Charge state and voltage are shown on a numeric display. This little guy: **broken link removed**
My current phone yells at me when it needs charging. The LED surrounding the charge port starts to blink.