gtn650 to grt hx settings help!!!

HELP Anyone has fast stack,gtn650 & grt hx w/autopilot set up need your settings ...having trouble finding a shop than will work on it.704-438-1222
N147rp Randy Pinkston near charlotte nc

I suggest you look here:

https://grtavionics.com/media/Horizon-430W.pdf

This is for a G430 so for the newer GTNs the PIN numbers may have changed but the functions are the same (RS232 connections, ARINC connections).
NONE of the analog connections shown are needed. They're strictly back-up.

Tks bob but i have that from faststack, i need 345transponder,gtn650 settings, ( rs232)/ ect.