This is for Humminbird Greg. I currently run two 1198's networked together with ethernet. I'm also running a as gps hs antenna and a tg w (think that's correct) temp probe in livewell. If I switch to two Onix NT 10 SI units, can you tell me what all I will need for this new setup. Thank you for your time! Also, will older Navionics premium east map cards run in these units?
metalworx