Mounts serve a few important roles. First, they hold your iPod to protect it from being jolted around in the car. But they can make your iPod easily accessible to control it, too. Without them, you might be groping the seats and floor for the iPod (not to mention taking your eyes off the road).
So in lieu of propping up the iPod in a cup holder -- which isn't very handy when you want to access the controls and might get it tossed aside when a drink needs to take its place -- you can opt for a mount designed to fit in a cup holder and hold the device above it. Other kinds of mounts snap into car vents or screw into the floor of the car and extend upward. Still more use screws, bolts or adhesives to attach to the center console [source: Cabell].
One popular option is a suction-cup mount. These usually attach to a window, such as the windshield, or the dashboard and extend out with an adjustable arm. You can also get such arms, known as gooseneck arms, on the other kinds of mounts we mentioned above.
Despite all these options, some do-it-yourselfers prefer to fashion their own iPod mounts. The sky's the limit when you have a little creativity and access to a hardware store.
If all this clutter -- the sound transfer, power source and mount -- is already giving you a headache, perhaps the next accessory would be best for you.