Santa recently brought me a Garmin GPS for my boat. Now, I haven't found any information regarding installation. It's pretty straight forward, I'll be installing it on my center console, but I really am nervous about drilling that first hole for the power cord. Any suggestions out there? I'm trying to make the installation as clean as possible. Also, does anyone have any antenna information? I have a T-Top and Bass Pro Shops was unsure if I needed to buy a remote antenna or not.