My AP22 display finally went out so Ive decided to upgrade. I ripped out my J300x and will get a NAC3 which I can network to my NSS12evo2. Ive heard people mention high and low current versions of the NAC3. This is on a ‘84 45C. I haven’t measured cylinder volume yet. I’d like to upgrade the pump eventually but was hoping to get by with the old one for now. Also wondering if the old nmea183 rudder indicator and rate compass will work with the NAC3 and if so, will the NAC3 pass the rudder position and heading to my nmea2000 network? By the way, I already have the cable to input video and 0183 data to the NSS12. Thanks guys