Vehicle-mounted electronic apparatus

There is provided an electronic apparatus 1 having a simple anti-theft mechanism. In this construction, an electronic apparatus main body (2) is provided through which a first recording medium and a second recording medium can be inserted and ejected; and an operation section (3) which can be attached to and detached from the electronic apparatus main body (2). The first recording medium can be inserted and ejected through the electronic apparatus main body (2) having the operation section (87) attached thereto, and the second recording medium can be inserted and ejected through the electronic apparatus main body (2) having the operation section (3) detached therefrom.