JVC KD-LX50R Instructions Manual page 36

STOP
PLAY
9
Speak the same word(s) again while "REPEAT" is flashing on
the display. (In this example, speak "Turn off.")
If the recording fails
A beep sound comes out and the display goes back to the one shown in step 6.
10
Repeat steps 6 to 9 to record your own voice for other preset
Operation Commands (VOICE 02 to VOICE 13).
11
To erase your own voice from the Operation Commands
See "To erase the voice commands" on page 45.
36
"CHECK" appears on the display while recording your voice.
"OK" appears when
recording is complete.
" " on the display means that your own voice is recorded for this voice
command.
Press and hold VOICE again to finish the recording.