Has anyone been able to fly a coupled ILS or LPV approach with this? I'm using the RXP GNS 530 with the Carenado 430 option and have not been able to get the autopilot to capure the glideslope on any approaches! The autopilot tracks the localizer fine but never the glideslope, I've tried with the gns in gps mode and vloc with no success

Use the gns option with the 530 the intercept a lpv approach using alt hold and arm approach Mode on the ap. It works for me