I was shopping for a GPS and after much too much comparisons and searches I thought I would get the Garmin etrex venture GPS as it seems to give the most forthe money.Anyone out there that has one please stop me if I am making a mistake. I would be using it on the Gulf Coast.My friend gve me a car radio and two speakers for the boat. How do you wire this damn thing. I have a female connector in the back in one of two male slots in the back, seven wires coming out of the back of the female connector.These two question are a stretch, but if there is smeone out there that can help it would be appreciated. Waiting with soldering gun in hand and blank look on face. Bud