I have a Helix 9 Mega SI G2N and on getting a Helix 10 Mega DI G2N. Can I use the Mega 9 SI (XM 9 20 MSI T) transducer on a Mega 10 DI and if so how do I connect it? I would also like to install a transducer on the Minn Kota Power Drive to be able to switch at least one unit to.