Im thinking about getting an FM transmitter so i can listen my ipod in my car?

im a caveman when it comes to electronics...so i thought about buying one online since they're cheaper...my only problem is i came across one at amazon but theres not alot of info...it sais i charges ipod but can i listen to my ipod in my car???a href="http://www.amazon.com/Charging-Holder-Transmitter-Video-Photo/dp/B000FDXH84/ref=sr_1_15?ie=UTF8&s=electronics&qid=1252477670&sr=8-15" rel="nofollow"http://www.amazon.com/Charging-Holder-Tr…/a