Sony MEX-N4000BT Operating Instructions - Page 6

PAUSE  PTY (program type) Select PTY in RDS.  AUX input jack  USB port  Microphone (on inner panel) In order for the handsfree function to work properly, do not cover the microphone with tape, etc. RM-X231 Remote Getting Started Detaching the Front Panel You can detach the front panel of this unit to prevent theft. 1 Press and hold OFF . The unit is turned off. 2 Press the front panel release button , then remove the panel by pulling it towards you. The VOL (volume) + button has a tactile dot. Remove the insulation film before use. Caution alarm If you turn the ignition switch to the OFF position without detaching the front panel, the caution alarm will sound for a few seconds. The alarm will only sound if the built-in amplifier is used. Serial numbers Make sure the serial numbers on the bottom of the unit and the back of the front panel are matched correctly. Otherwise you cannot make BLUETOOTH pairing, connection and disconnection by NFC. Attaching the front panel VOL (Volume) +/-  SOUND Open the SOUND menu directly. -MENU Press and hold to open the setup menu DSPL (display)/-SCRL(scroll) Change display items. Press and hold to scroll a display item. 6GB Setting the Clock 1 Press MENU, rotate the control dial to select [GENERAL], then press it. 2 Rotate the control dial to select [CLOCK- ADJ], then press it. The hour indication flashes.