Mgl infinity FF, red cube and garmin aera don't talk

[Turbofan]

My fuel flow computer MGL infinity doesn't get any signal from red cube or my garmin aera....don't know what baud rate, tried em all, I set garmin to NMEA setting to use ground speed but I'm getting info from gps, aera says it's connected, only indication on FF is tank quantity from senders.
Anyone have issues? I checked wiring but I guess will have to decowl and recheck
I installed extra wire to GPS of course, hooked red cube to FF per diagram, ran through FF set up, nothing