Gen 7.5 instruments in a gen 7?
 

Is it possible to move the instrument panel from an 06 07 sedan to an 03-05 sedan? What about installing the climate control system on one that did not have it from the factory? I like the 06-07, but I just can't give up the feel of a cable throttle!

anything is possible with enough electrical knowledge. plug and play? no. custom wired and fabricated and designed? sure.

Definitely, it is not a plug and play. From what I heard one or more of the connector plug(s) for the gauge control module (instrument panel) are different. There may also be communication problems (hardware/software) between the multiplex integrated control unit (MICU) and gauge control module, as well as other control units. The driver's MICU is part of the interior fuse box; and different years show different Honda part numbers for the interior fuse boxes.