The LC100 has always been available with and without navigation. The top pic here is with, and then you also have all the aircon and heating controls on the screen. It's a royal pain to have alle the audio, navigation and heating/cooling in the same system, at least when it gets dated or faulty.
The bottom version, marked 1 and 2, is the non-navi for 2003 onwards. Earlier versions has three rotary knobs which are much easier, faster and safer to use. Difference between 1 and 2 is that 1 has rear A/C (button 2 from right, bottom row), and 2 has rear heater (button 2 from left in bottom row). Version 1 might have the rear heat in addition to rear A/C.
So, afaik, all three can be from any year between 2003 and 2007.