I set gps to vloc and tune my nav 1radio but the cdi doesnt move no matter how far off track i get nor does it indicate to or from and nav2 vor on right appears to do nothing either....is anyone else having this issue. I have the newest sp3.

The NAV1 radio is tuned via the GPS... is that where you are tuning it?

I used the GPS unit to tune the NAV 1 radio. I then tried to set the CDI to follow VLOC or NAV radio. I have tried setting this from the GPS and the panel button. The NAV flag comes up but the CDI has no deflection or direction flag. Also when setting NAV 2 the dial on the right seat does not deflect at all based on course deviation. However as soon as I set it back to GPS it shows direction and course deviation.

I think the problem might be fs passengers