(1) is the transducer the same as the Helix 10 SI/GPS?
(2) I think the transducer can be traded for a TM transducer?
The reason I ask is, I'm thinking of buying a 12 for the console and moving the 10 SI/GPS to the front. If what ask is not possible, I'll just replace the 7 DI/GPS on the front with another 10 SI/GPS but would really like the CHIRP on the 12 for crappie fishing.
TIA,
Bill