GA-CAR: Third Party Car Charger with mini-USB tip for Mio, Garmin Nuvi, Magellan
Works fine, I replaced my original charger which broke, and see that the new one is about the same quality. There is no need to spend more money on original chargers.  **** UPDATE  ****  The charger did work fine for about 2 months and then it blew up the fuses in my car. I thought it was car's fault at the beginning but then I plugged the GPS in another car and the same thing happened. The cable does not have any cuts or other damage that could cause the problem.