I don't believe the Monarch or Grananda ever did have a digital dash, and I am not sure about the Versailles. The dash I have was used in T-birds from '80 to '82, and the digital dash was an option(I also have an analog speedo cluster). I took the entire wiring harness from the T-bird and spliced it into the Mav harness using wiring diagrams from both cars as a guide. One issue that comes to mind is that the fuel gauge sending unit works exactly opposite of the analog Mav one..and I had to take the sender out and carefully solder the wires in reverse to make the digital gauge work properly....

Mark