Vehicle electronic system

A vehicle electronic system comprising:

• a first electronic control unit having a predetermined first control function;
• a second electronic control unit, which is formed independently of said first electronic control unit, and has a predetermined second control function different from the first control function, the second control function including a function of reading out information from a storage medium inserted from a passenger room side, and said second electronic control unit having an insertion hole for inserting the storage medium;
• a control panel, which is formed independently of said first and second electronic control units, comprises, on the passenger room side, a plurality of control switches for operating individual control functions pertaining to said first and second electronic control units, and a display device for making display of the individual control functions pertaining to said first and second electronic control units, and has a communication hole for inserting the storage medium in correspondence with the insertion hole;
• a third electronic control unit, which is formed independently of said first and second electronic control units and said control panel, selects one of the control functions of said first and second electronic control units when one of the control switches is operated, outputs a control signal for operating the control function of the selected electronic control unit to the selected electronic control unit, and outputs a display control signal for making the display device of said control panel display upon receiving a display signal from one of said first and second electronic control units;
• and
• electrical connection means for electrically connecting between said first to third electronic control units, and said control panel,
• said first to third electronic control units being laid out adjacent to and parallel to each other on a side opposite to the passenger room of said control panel,
• wherein said third electronic control unit is laid out to be parallel to said first and second electronic control unit so as not to disturb a path between the insertion hole of said second electronic control unit and the communication hole of said control panel, and
• said electrical connection means independently comprises a first line for detachably connecting said first and third electronic control units via a connector, a second line for detachably connecting said second and third electronic control units via a connector, and a third line for connecting said control panel and said third electronic control unit.