Switch rear/sub

Apparently, according to Sony, this unit is only available in Latin America. However, here is the manual you requested.
http://www.docs.sony.com/release/CDXA250.pdf

Go to menu. You know the setting icon right. Click on that icon.In that one select first ooption named general settings. in that ,you want to select third option will be the language option in that one you can see the english option.....Hope this will helps you...Thank you...

Manual

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I have the the sony cdx gt 400 and the manual is of no help but I figured it out. You have two options...option 1 is wait until 1 o'clock and hit the small reset button on the radio behind your detachable face, or option 2 is a even better option. Press and hold the volume button in and options will appear...then by tapping the volume button you will cycle through the various options until you find "clock adjust" then press the small "display" button below the volume knob and also right next to the "source" button...the hour will flash turn the volume knob to desired hour then tap the volume knob or display button and the minutes will flash then turn the volume knob to the desired minutes, and you are done...hopefully this helps

.Hi guys. had the same problem & couldn't get the security code. Had to enter 0000 0001 0002 0003 0004 until I got it. Worked though