A vehicle door handle device for attaching to a door panel for operating a door latching device and a door locking device comprises an operation handle and a lock knob. The operation handle operates the latching device to unlatch and open the door. The lock knob operates the locking device to lock and unlock the door. An open cable links the operation handle to the latching device. A lock cable links the lock knob to the locking device. An inner handle housing houses the operation handle and the lock knob. The handle housing includes a cable support part defining a first space for receiving an end portion of the open cable, and a second space for receiving an end portion of the lock cable. The cable support part is configured to prevent one of the end portion of the open cable and the end portion of the lock cable from being received in one of the first space and the second space.