If you buy a new car, borrow a friend's, or even rent, you may be presented with a handy-dandy aux jack. Aux stands for auxilliary, it lets you hook up your music player to the car's stereo. You'll ...

The humble aux cable or, more formally, the 3.5mm auxiliary cable, has long been a universal standard for analog audio signals. Aux cables allow you to accomplish such tasks as plugging in your ...