Thanks - I double checked that I have green/orange TX wire from the Skyview going to the RX pins on the Razor and the RX green/violet going to the TX pin on the Razor - but perhaps that is incorrect?
So just for experimentation, since the Razor head has two RX and TX pins, I connected...
To follow up on this topic, I am having the same issue...can't get data to feed to the HSI on the Classic Skyview. I used serial port # 3 (the green and orange/violet wires) and have double checked the that TX wire is going to the RX pin on the MGL Razor head. Would there be any chance that...