Blaupunkt recently rolled out an SD-equipped car stereo, but if flash cards aren't your thing, you might want to consider either the company's new Kingston MP47 or Hamburg MP57 stereo, each of which boast USB inputs to accommodate your mass storage device of choice. If that's not enough for you, both models also sport standard 3.5mm front panel inputs to let you jack in any old audio device, and the MP57 ups the options even further
with built-in Bluetooth capability (something that can be added to the MP47 with an optional module). Otherwise, you can expect to get 45 watts of power through four channels from each stereo, along with removable front panels, a three-band parametric equalizer, and an included microphone on the MP57 model for Bluetooth hands-free operation. The MP47 also boasts a customizable Variocolour display, while the MP57 opts for a standard black-and-white dot matrix deal. If that suits, you should be able to grab either one now, with the MP47 running $210 and the MP57 setting you back $320.