Free: Contests & Raffles.
Sweeet!!!!! They are pretty easy to get set up.
LOL! Don't let the book intimidate you. Installation is a breeze if you get just the basics from the book and let common sense take over to do the rest. Does the unit have an external GPS receiver? If so, make sure that you mount it where you are not going to hit it or get your fishing lines caught up in it when casting.
regarding the external antennae. What model of Lowrance did you get?