Not sure, we need more info.
Inboard/Inboard outboard/Outboard
Kicker/No kicker/both
I went with the Raymarine EV100 and love it. I run a kicker or outboard, don't think about just buy it. These units are like having a 2nd person steering. I can actually fight fish and net while the boat steers itself. I honestly can't believe I didn't by one sooner.
Sent from my thinking chair...