All CB's need an external antenna unless of course you're going with a handheld one that already has an antenna on it. (I'd suggest a firestik) A lot of guys here (myself included) are running the Uniden 520xl, it's nice and compact, and fits perfectly into the center console. I'm not totally sure if mine can use a lighter plug, but if you need help wiring it without having to use up a lighter plug I plan on writing a little how to after i learned how to install my own CB (with the help of everyone at the mod day, especially duffman!)