vizion 385

My RV7A currently has the Dynon D100/120, TruTrak Vizion 385 Autopilot, and Garmin 296 GPSMAP (feeds Dynon and TruTrak via Serial interface). I’m adding the Dynon HS34 and Garmin GNC 420W (GPSW and Comm only). Plan is to Run ARINC 429 from GNC 420W to both V385 Autopilot and Dynon HS34. I...