Problems With Remote Transponder Garmin 330?
 

Any problems making a GTX330 Remote transponder work from the GNS480? I have not been able to get them to talk to each other.
This is in an RV 10 and I have a 15 ft cable from the panel to the back of the cargo area. I'm not sure if the distance is excessive. Any one has a transponder mounted that far away?