The GXM 54 satellite weather/radio antenna with SiriusXM coverage lets you head out with detailed weather information that’s delivered straight to your Garmin chart plotter. You’ll gain added awareness and confidence on the water with the most current weather conditions and forecasts, including NEXRAD, lightning, wind and wave information. And you’ll enjoy high quality entertainment with more than 150 channels of SiriusXM satellite radio. Plus, you can add Fish Mapping™ to find suggested potential hot spots for popular species – including mahi, marlin, swordfish, wahoo and yellowfin – based on sea conditions. Display sea surface temperature contours, surface temperature front strength and 30 m subsurface temperature contours, and monitor plankton data such as concentration contours and plankton front strength.