autohelm ah2000

[mam]

i have just bought a 31foot yacht which has with it a full set of autohelm st50 gear including navcenter gps stearing compas wind speed and depth. It also has a autohelm ah2000 ,a st6000+ and st7000+ autopilot control unitsDos anybody know if these can control the ah200 (would a seatalk nema converter help?) or can the ah2000 be controled directly from the st50 navcenter. AS the stearing controle side of this system is not conected together at present could someone please direct me on the best way to conect it? What about nema it says the ah200 can take a nema radio navigation interface unit dose anybody how to get one or where

thanks


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