Humminbird has come out with an ice fishing package for the larger screen owners. Its label is the Ice Ptc Chirp 8910. It does run 219.99 however. This will work with both the G2 and G3 units . The units will have to have the latest update installed to work with the supplied transducer. Along with transducer a shuttle , wire connector will make easy for larger screen owners to utilize on ice.