Garmin GPSmap 376c
The Garmin GPSmap 376c has two satellite receivers in one. One antenna receives up to 12 LEO GPS satellites while the other receives signals from the 2 XM satellites, Rock and Roll in a geostationary orbit. What makes this GPS map even better is that weather overlays can be placed over your current position and even wind trends and lightning strikes can be seen. Expect to pay an additional fee over your XM radio subscription.