If most of your fishing is casting around logs and shallow weed beds, then I would recommend a cable steer bow mount over an iPilot. The iPilot / Xi5 units have an advantage for trolling and with spot lock, etc. But cable steer will give you better control when your manuvering around structure. You should not have to upgrade your wiring for a 24v motor. A 24v motor actually draws fewer amps than a 12v motor; so your not going to be drawing any more amps than your current motor. Having said that; my boat was pre-wired with 12g wire which is inadequate for a trolling motor. I wouldn't assume that the stock wiring is adequate. I melted the fuse holder on mine.