Without Navigation System

Remove the fan switch (A) and temperature control dials (B), then remove the front (C), temperature control (D) and fan switch (E) panels, Remove the A/C switch (F), MODE control switch (G), AUTO switch (H), OFF switch (I), recirculation control switch (J), front defroster switch (K) and rear defogger switch (L) buttons.

Fig 1: Removing Fan Switch
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Reassemble the control unit in the reverse order of removal.