[CA] [CA11] Replace C120 Classic with E120 Classic?

[willyritch]

Hi Chuck--this thread from last summer was helpful. I'm thinking of replacing my C120 with an E120 (classic) because: 1) it will let me update my EVO 400 autopilot and 2) I think the screen is better and brighter--is that correct?

And from your post and other research it looks like my DSM 250 sounder module will NOT work. Also correct?

Is it possible for me to find a (used) more up to date sounder module that I can use with the current transducer and is also compatible with an E120? If so, what module should I look for?

Thanks.