I have an option on a Simrad AP setup. It is a AC42 computer with an AP44 controller and a RPU80 pump. The electronics on my boat is a Raymarine C90W MFD, Raymarine RL80C Radar/MFD and a Garmin Striker 7. The Raymarines are linked thru a Seatalk/2K converter. Is there any reason that that older Simrad AP wouldn't work on the Raymarine legacy unit?