Hoping for some ideas here or someone using the TBX and huVVer. Panel with G3X with LRU kit, G5, and the TBX. I'm using the huVVer AVI TBX for the control head which requires a serial encoded altimeter input. With the G5 serial port set to encoding and connector P51, pin 5 going to the huVVer I'm not getting altimeter info on the AVI. I also tried pin 9 from connector J252 on the GSU 25 with no luck. Checked all the wires and have continuity pin to pin and double checked for proper pin locations in the connectors. I'm hoping this is just a configuration finger issue or I have a bum unit somewhere. I got a few ideas on the G5 forum and now reaching out further.