| 摘要 |
<p>There is described an on-vehicle unit which permits removal and attachment of various optional modules from and to a center module and which enables easy addition and removal of various functions. The on-vehicle unit is provided in a dashboard of a vehicle, and a center module-into which there are built as standard devices a radio receiving unit and a car navigation unit-has a plurality of module loading sections. Optional modules, such as a television tuner module, a cassette deck module, and a VICS module, can be built into the center module, as required. The center module 7 has a central control section for controlling the standard units and various optional modules. The control mode of the control section is switched according to a combination of optional modules to be built into the center module. <IMAGE></p> |
